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Virzì GM, Morisi N, Marturano D, Milan Manani S, Tantillo I, Ronco C, Zanella M. Peritoneal Inflammation in PD-Related Peritonitis Induces Systemic Eryptosis: In Vitro and In Vivo Assessments. Int J Mol Sci 2024; 25:4284. [PMID: 38673869 PMCID: PMC11049828 DOI: 10.3390/ijms25084284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Erythrocytes (RBCs) have a highly specialized and organized membrane structure and undergo programmed cell death, known as eryptosis. Our preliminary data show a significant increase in the eryptosis during peritoneal dialysis (PD)-associated peritonitis. The objectives of the present study were assessment of the incrementation of eryptosis in PD patients with peritonitis, evaluation of the relationship between systemic eryptosis in peritonitis and specific peritonitis biomarkers in PD effluent (PDE), and confirmation of the induction of eryptosis by peritonitis in a vitro setting. We enrolled 22 PD patients with peritonitis and 17 healthy subjects (control group, CTR). For the in vivo study, eryptosis was measured in freshly isolated RBCs. For the in vitro study, healthy RBCs were exposed to the plasma of 22 PD patients with peritonitis and the plasma of the CTR group for 2, 4, and 24 h. Eryptosis was evaluated by flow cytometric analyses in vivo and in vitro. PDE samples were collected for biomarkers analysis.The percentage of eryptotic RBCs was significantly higher in PD patients with peritonitis than in CTR (PD patients with peritonitis: 7.7; IQR 4.3-14.2, versus CTR: 0.8; IQR 0.7-1.3; p < 0.001). We confirmed these in vivo results by in vitro experiments: healthy RBCs incubated with plasma from PD patients with peritonitis demonstrated a significant increase in eryptosis compared to healthy RBCs exposed to plasma from the control group at all times. Furthermore, significant positive correlations were observed between eryptosis level and all analyzed peritoneal biomarkers of peritonitis. We investigated a potential connection between systemic eryptosis and peritoneal biomarkers of peritonitis. Up-regulation of inflammatory markers could explain the increased rate of systemic eryptosis during PD-related peritonitis.
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Affiliation(s)
- Grazia Maria Virzì
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy; (D.M.); (S.M.M.); (I.T.); (M.Z.)
- IRRIV—International Renal Research Institute, 36100 Vicenza, Italy; (N.M.); (C.R.)
| | - Niccolò Morisi
- IRRIV—International Renal Research Institute, 36100 Vicenza, Italy; (N.M.); (C.R.)
- Nephrology Dialysis and Renal Transplantation Unit, University of Modena and Reggio Emilia, 41121 Modena, Italy
| | - Davide Marturano
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy; (D.M.); (S.M.M.); (I.T.); (M.Z.)
- IRRIV—International Renal Research Institute, 36100 Vicenza, Italy; (N.M.); (C.R.)
| | - Sabrina Milan Manani
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy; (D.M.); (S.M.M.); (I.T.); (M.Z.)
- IRRIV—International Renal Research Institute, 36100 Vicenza, Italy; (N.M.); (C.R.)
| | - Ilaria Tantillo
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy; (D.M.); (S.M.M.); (I.T.); (M.Z.)
- IRRIV—International Renal Research Institute, 36100 Vicenza, Italy; (N.M.); (C.R.)
| | - Claudio Ronco
- IRRIV—International Renal Research Institute, 36100 Vicenza, Italy; (N.M.); (C.R.)
| | - Monica Zanella
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy; (D.M.); (S.M.M.); (I.T.); (M.Z.)
- IRRIV—International Renal Research Institute, 36100 Vicenza, Italy; (N.M.); (C.R.)
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Dehghan S, Kheshtchin N, Hassannezhad S, Soleimani M. Cell death classification: A new insight based on molecular mechanisms. Exp Cell Res 2023; 433:113860. [PMID: 38013091 DOI: 10.1016/j.yexcr.2023.113860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 11/29/2023]
Abstract
Cells tend to disintegrate themselves or are forced to undergo such destructive processes in critical circumstances. This complex cellular function necessitates various mechanisms and molecular pathways in order to be executed. The very nature of cell death is essentially important and vital for maintaining homeostasis, thus any type of disturbing occurrence might lead to different sorts of diseases and dysfunctions. Cell death has various modalities and yet, every now and then, a new type of this elegant procedure gets to be discovered. The diversity of cell death compels the need for a universal organizing system in order to facilitate further studies, therapeutic strategies and the invention of new methods of research. Considering all that, we attempted to review most of the known cell death mechanisms and sort them all into one arranging system that operates under a simple but subtle decision-making (If \ Else) order as a sorting algorithm, in which it decides to place and sort an input data (a type of cell death) into its proper set, then a subset and finally a group of cell death. By proposing this algorithm, the authors hope it may solve the problems regarding newer and/or undiscovered types of cell death and facilitate research and therapeutic applications of cell death.
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Affiliation(s)
- Sepehr Dehghan
- Department of Medical Basic Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Nasim Kheshtchin
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Maryam Soleimani
- Department of Medical Basic Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
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Jasenovec T, Radosinska D, Jansakova K, Kopcikova M, Tomova A, Snurikova D, Vrbjar N, Radosinska J. Alterations in Antioxidant Status and Erythrocyte Properties in Children with Autism Spectrum Disorder. Antioxidants (Basel) 2023; 12:2054. [PMID: 38136174 PMCID: PMC10741171 DOI: 10.3390/antiox12122054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
Erythrocytes are responsible for the transport of oxygen within the organism, which is particularly important for nerve tissues. Erythrocyte quality has been shown to be deteriorated in oxidative stress conditions. In this study, we measured the same series of oxidative stress markers in plasma and erythrocytes to compare the differences between neurotypical children (controls) and children with autism spectrum disorder (ASD). We also focused on erythrocyte properties including their deformability, osmotic resistance, Na,K-ATPase activity, nitric oxide levels and free radical levels in children with ASD and controls. Greater oxidative damage to proteins and lipids was observed in the erythrocytes than in the plasma of ASD subjects. Additionally, antioxidant enzymes were more active in plasma samples from ASD children than in their erythrocytes. Significantly higher nitric oxide level and Na,K-ATPase enzyme activity were detected in erythrocytes of ASD individuals in comparison with the controls. Changes in oxidative status could at least partially contribute to the deterioration of erythrocyte morphology, as more frequent echinocyte formation was detected in ASD individuals. These alterations are most probably responsible for worsening the erythrocyte deformability observed in children with ASD. We can conclude that abnormalities in antioxidant status and erythrocyte properties could be involved in the pathomechanisms of ASD and eventually contribute to its clinical manifestations.
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Affiliation(s)
- Tomas Jasenovec
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 2, 811 08 Bratislava, Slovakia; (T.J.); (K.J.); (M.K.); (A.T.)
| | - Dominika Radosinska
- Institute of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 4, 811 08 Bratislava, Slovakia;
| | - Katarina Jansakova
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 2, 811 08 Bratislava, Slovakia; (T.J.); (K.J.); (M.K.); (A.T.)
| | - Maria Kopcikova
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 2, 811 08 Bratislava, Slovakia; (T.J.); (K.J.); (M.K.); (A.T.)
| | - Aleksandra Tomova
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 2, 811 08 Bratislava, Slovakia; (T.J.); (K.J.); (M.K.); (A.T.)
| | - Denisa Snurikova
- Centre of Experimental Medicine, Slovak Academy of Sciences, Institute for Heart Research, Dúbravská Cesta 9, 841 04 Bratislava, Slovakia; (D.S.); (N.V.)
| | - Norbert Vrbjar
- Centre of Experimental Medicine, Slovak Academy of Sciences, Institute for Heart Research, Dúbravská Cesta 9, 841 04 Bratislava, Slovakia; (D.S.); (N.V.)
| | - Jana Radosinska
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 2, 811 08 Bratislava, Slovakia; (T.J.); (K.J.); (M.K.); (A.T.)
- Centre of Experimental Medicine, Slovak Academy of Sciences, Institute for Heart Research, Dúbravská Cesta 9, 841 04 Bratislava, Slovakia; (D.S.); (N.V.)
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Marcello M, Virzì GM, Marturano D, de Cal M, Marchionna N, Sgarabotto L, De Rosa S, Ronco C, Zanella M. The Cytotoxic Effect of Septic Plasma on Healthy RBCs: Is Eryptosis a New Mechanism for Sepsis? Int J Mol Sci 2023; 24:14176. [PMID: 37762478 PMCID: PMC10531772 DOI: 10.3390/ijms241814176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Sepsis is a life-threatening multiple-organ dysfunction induced by infection and is one of the leading causes of mortality and critical illness worldwide. The pathogenesis of sepsis involves the alteration of several biochemical pathways such as immune response, coagulation, dysfunction of endothelium and tissue damage through cellular death and/or apoptosis. Recently, in vitro and in vivo studies reported changes in the morphology and in the shape of human red blood cells (RBCs) causing erythrocyte death (eryptosis) during sepsis. Characteristics of eryptosis include cell shrinkage, membrane blebbing, and surface exposure to phosphatidylserine (PS), which attract macrophages. The aim of this study was to evaluate the in vitro induction of eryptosis on healthy RBCs exposed to septic plasma at different time points. Furthermore, we preliminary investigated the in vivo levels of eryptosis in septic patients and its relationship with Endotoxin Activity Assay (EAA), mortality and other biological markers of inflammation and oxidative stress. We enrolled 16 septic patients and 16 healthy subjects (no systemic inflammation in the last 3 months) as a control group. At diagnosis, we measured Interleukin-6 (IL-6) and Myeloperoxidase (MPO). For in vitro study, healthy RBCs were exposed to the plasma of septic patients and CTR for 15 min, 1, 2, 4 and 24 h. Morphological markers of death and eryptosis were evaluated by flow cytometric analyses. The cytotoxic effect of septic plasma on RBCs was studied in vitro at 15 min, 1, 2, 4 and 24 h. Healthy RBCs incubated with plasma from septic patients went through significant morphological changes and eryptosis compared to those exposed to plasma from the control group at all time points (all, p < 0.001). IL-6 and MPO levels were significantly higher in septic patients than in controls (both, p < 0.001). The percentage of AnnexinV-binding RBCs was significantly higher in septic patients with EAA level ≥0.60 (positive EAA: 32.4%, IQR 27.6-36.2) compared to septic patients with EAA level <0.60 (negative EAA: 14.7%, IQR 5.7-30.7) (p = 0.04). Significant correlations were observed between eryptosis and EAA levels (Spearman rho2 = 0.50, p < 0.05), IL-6 (Spearman rho2 = 0.61, p < 0.05) and MPO (Spearman rho2 = 0.70, p < 0.05). In conclusion, we observed a quick and great cytotoxic effect of septic plasma on healthy RBCs and a strong correlation with other biomarkers of severity of sepsis. Based on these results, we confirmed the pathological role of eryptosis in sepsis and we hypothesized its use as a biomarker of sepsis, potentially helping physicians to face important treatment decisions.
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Affiliation(s)
- Matteo Marcello
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy (M.Z.)
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
| | - Grazia Maria Virzì
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy (M.Z.)
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
| | - Davide Marturano
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy (M.Z.)
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
- Nephrology, Dialysis and Transplantation Unit, Department of Medicine, University of Padova, 35100 Padova, Italy
| | - Massimo de Cal
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy (M.Z.)
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
| | - Nicola Marchionna
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy (M.Z.)
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
| | - Luca Sgarabotto
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy (M.Z.)
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
| | - Silvia De Rosa
- Centre for Medical Sciences-CISMed, University of Trento, Via S. Maria Maddalena 1, 38122 Trento, Italy
- Anesthesia and Intensive Care, Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy
| | - Claudio Ronco
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
| | - Monica Zanella
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy (M.Z.)
- IRRIV-International Renal Research Institute, 36100 Vicenza, Italy
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Alghareeb SA, Alsughayyir J, Alfhili MA. Stimulation of Hemolysis and Eryptosis by α-Mangostin through Rac1 GTPase and Oxidative Injury in Human Red Blood Cells. Molecules 2023; 28:6495. [PMID: 37764276 PMCID: PMC10535552 DOI: 10.3390/molecules28186495] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Chemotherapy-related anemia is prevalent in up to 75% of patients, which may arise due to hemolysis and eryptosis. Alpha-mangostin (α-MG) is a polyphenolic xanthonoid found in the mangosteen tree (Garcinia mangostana) whose antitumor medicinal properties are well-established. Nevertheless, the potential toxic effects of α-MG on red blood cells (RBCs) have, as of yet, not been as well studied. METHODS RBCs were exposed to 1-40 μM of α-MG for 24 h at 37 °C. Hemolysis and related markers were measured using colorimetric assays, eryptotic cells were identified through Annexin-V-FITC, Ca2+ was detected with Fluo4/AM, and oxidative stress was assessed through H2DCFDA using flow cytometry. The toxicity of α-MG was also examined in the presence of specific signal transduction inhibitors and in whole blood. RESULTS α-MG at 10-40 μM caused dose-dependent hemolysis with concurrent significant elevation in K+, Mg2+, and LDH leakage, but at 2.5 μM it significantly increased the osmotic resistance of cells. A significant increase was also noted in Annexin-V-binding cells, along with intracellular Ca2+, oxidative stress, and cell shrinkage. Moreover, acetylcholinesterase activity was significantly inhibited by α-MG, whose hemolytic potential was significantly ameliorated by the presence of BAPTA-AM, vitamin C, NSC23766, and isosmotic sucrose but not urea. In whole blood, α-MG significantly depleted intracellular hemoglobin stores and was selectively toxic to platelets and monocytes. CONCLUSIONS α-MG possesses hemolytic and eryptotic activities mediated through Ca2+ signaling, Rac1 GTPase activity, and oxidative injury. Also, α-MG leads to accelerated cellular aging and specifically targets platelet and monocyte populations in a whole blood milieu.
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Affiliation(s)
| | | | - Mohammad A. Alfhili
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 12372, Saudi Arabia (J.A.)
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Zhao B, Yang X, Li W, Zhu H, Meng Q, Ma Y, Liu Y, Zhou Y, Lin J, Zhai C, Zhao L, Sun J, Wang R. Effect of roxadustat on red blood cell lifespan in patients with long-term haemodialysis: a single-centre, prospective, single-arm study. Clin Kidney J 2023; 16:1500-1507. [PMID: 37664567 PMCID: PMC10469108 DOI: 10.1093/ckj/sfad080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Indexed: 09/05/2023] Open
Abstract
Background Reduced survival of red blood cells (RBCs) in patients with chronic kidney disease (CKD) is thought to contribute to renal anaemia. Although renal anaemia improved greatly because of the wide use of erythropoiesis-stimulating agents (ESAs) and the advancement of dialysis techniques, RBC longevity seems not to be obviously ameliorated. Methods In this single-centre, single-arm trial, patients who had been undergoing haemodialysis and ESA therapy with epoetin alfa for at least 12 weeks changed their anti-anaemia drugs from epoetin alfa to oral roxadustat three times per week for 24 weeks. The primary endpoint was the change in RBC lifespan from baseline at week 24. The change in the circulating percentage of eryptotic RBCs, RBC deformability and RBC oxygen transport ability were also assessed. Results A total of 27 patients were enrolled, with 26 completing the full course of intervention. At baseline, the average RBC lifespan was 60.1 days [standard deviation (SD) 14.4; n = 27]. At the end of the study period, 26 patients had an RBC lifespan measurement (83.9 days on average; SD 21.9). The RBC lifespan increased by 22.8 days on average [95% confidence interval (CI) 15.5-30.0, P < .001]. This equated to an average RBC lifespan increase of 39.2% (95% CI 27.8-50.6). The percentage of circulating eryptotic RBCs, erythrocyte filtration index and the pressure at which haemoglobin is 50% saturated decreased significantly from baseline to week 24 (1.39 ± 0.44% versus 0.89 ± 0.25%, P < .0001; 0.29 ± 0.12 versus 0.16 ± 0.08, P < .0001 and 32.54 ± 4.83 versus 28.40 ± 2.29, P < .001, respectively). Conclusion Roxadustat prolonged RBC lifespan in patients with long-term haemodialysis.
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Affiliation(s)
- Bing Zhao
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Xiaowei Yang
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Weidan Li
- Institute of Health Service and Transfusion Medicine, Academy of Military Medical Sciences, Academy of Military Science of the Chinese People's Liberation Army, Beijing, China
| | - Huizi Zhu
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qian Meng
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yongjian Ma
- Guangdong Breath Test Engineering and Technology Research Center, Shenzhen University, Shenzhen, China
| | - Yun Liu
- Department of Clinical Laboratory, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yan Zhou
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Jiangong Lin
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Chunjuan Zhai
- Department of Cardiology Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Lian Zhao
- Institute of Health Service and Transfusion Medicine, Academy of Military Medical Sciences, Academy of Military Science of the Chinese People's Liberation Army, Beijing, China
| | - Jing Sun
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Rong Wang
- Department of Nephrology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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Williams A, Bissinger R, Shamaa H, Patel S, Bourne L, Artunc F, Qadri SM. Pathophysiology of Red Blood Cell Dysfunction in Diabetes and Its Complications. PATHOPHYSIOLOGY 2023; 30:327-345. [PMID: 37606388 PMCID: PMC10443300 DOI: 10.3390/pathophysiology30030026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/01/2023] [Accepted: 08/01/2023] [Indexed: 08/23/2023] Open
Abstract
Diabetes Mellitus (DM) is a complex metabolic disorder associated with multiple microvascular complications leading to nephropathy, retinopathy, and neuropathy. Mounting evidence suggests that red blood cell (RBC) alterations are both a cause and consequence of disturbances related to DM-associated complications. Importantly, a significant proportion of DM patients develop varying degrees of anemia of confounding etiology, leading to increased morbidity. In chronic hyperglycemia, RBCs display morphological, enzymatic, and biophysical changes, which in turn prime them for swift phagocytic clearance from circulation. A multitude of endogenous factors, such as oxidative and dicarbonyl stress, uremic toxins, extracellular hypertonicity, sorbitol accumulation, and deranged nitric oxide metabolism, have been implicated in pathological RBC changes in DM. This review collates clinical laboratory findings of changes in hematology indices in DM patients and discusses recent reports on the putative mechanisms underpinning shortened RBC survival and disturbed cell membrane architecture within the diabetic milieu. Specifically, RBC cell death signaling, RBC metabolism, procoagulant RBC phenotype, RBC-triggered endothelial cell dysfunction, and changes in RBC deformability and aggregation in the context of DM are discussed. Understanding the mechanisms of RBC alterations in DM provides valuable insights into the clinical significance of the crosstalk between RBCs and microangiopathy in DM.
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Affiliation(s)
- Alyssa Williams
- Faculty of Science, Ontario Tech University, Oshawa, ON L1G 0C5, Canada
- School of Biomedical Engineering, McMaster University, Hamilton, ON L8S 4M1, Canada
| | - Rosi Bissinger
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University Hospital Tübingen, 72076 Tübingen, Germany
| | - Hala Shamaa
- Faculty of Health Sciences, Ontario Tech University, Oshawa, ON L1G 0C5, Canada
| | - Shivani Patel
- Faculty of Health Sciences, Ontario Tech University, Oshawa, ON L1G 0C5, Canada
| | - Lavern Bourne
- Faculty of Health Sciences, Ontario Tech University, Oshawa, ON L1G 0C5, Canada
| | - Ferruh Artunc
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University Hospital Tübingen, 72076 Tübingen, Germany
- Institute of Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, 72076 Tübingen, Germany
- German Center for Diabetes Research at the University of Tübingen, 72076 Tübingen, Germany
| | - Syed M. Qadri
- Faculty of Health Sciences, Ontario Tech University, Oshawa, ON L1G 0C5, Canada
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Yuan T, Jia Q, Zhu B, Chen D, Long H. Synergistic immunotherapy targeting cancer-associated anemia: prospects of a combination strategy. Cell Commun Signal 2023; 21:117. [PMID: 37208766 DOI: 10.1186/s12964-023-01145-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/23/2023] [Indexed: 05/21/2023] Open
Abstract
Cancer-associated anemia promotes tumor progression, leads to poor quality of life in patients with cancer, and even obstructs the efficacy of immune checkpoint inhibitors therapy. However, the precise mechanism for cancer-associated anemia remains unknown and the feasible strategy to target cancer-associated anemia synergizing immunotherapy needs to be clarified. Here, we review the possible mechanisms of cancer-induced anemia regarding decreased erythropoiesis and increased erythrocyte destruction, and cancer treatment-induced anemia. Moreover, we summarize the current paradigm for cancer-associated anemia treatment. Finally, we propose some prospective paradigms to slow down cancer-associated anemia and synergistic the efficacy of immunotherapy. Video Abstract.
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Affiliation(s)
- Ting Yuan
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Qingzhu Jia
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
- Chongqing Key Laboratory of Immunotherapy, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Bo Zhu
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China.
- Chongqing Key Laboratory of Immunotherapy, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China.
| | - Degao Chen
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China.
- Chongqing Key Laboratory of Immunotherapy, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China.
| | - Haixia Long
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China.
- Chongqing Key Laboratory of Immunotherapy, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China.
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9
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Jemaà M, Mokdad Gargouri R, Lang F. Polo-like kinase inhibitor BI2536 induces eryptosis. Wien Med Wochenschr 2023; 173:152-157. [PMID: 36178637 DOI: 10.1007/s10354-022-00966-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022]
Abstract
BI2536 is potent inhibitor of polo-like kinases PLK1, 2, and 3. The inhibition of PLKs in nucleated cells induces apoptosis by perturbing the cell cycle with consequent engagement of mitotic catastrophe. BI2536 is being tested as chemotherapy in various phase I/II/III clinical trials. Erythrocytes do not have a nucleus; however, they may undergo programmed suicide with characteristic hallmarks including cell shrinkage and phosphatidylserine translocation to the cell surface. This particular death is baptized eryptosis. Our study explored whether BI2536 induces eryptosis. We used flow cytometry to access death in red blood cells. We analyzed the cellular volume, the intracellular calcium concentration, the cell surface phosphatidylserine exposure, and the ceramide abundance. In addition, we analyzed the effect of BI2536 on hemolysis. Our investigation showed that after 48 h of incubation with PLK inhibitor BI2536, erythrocytes lost volume and were positive for annexin‑V without any effect on hemolysis. Cells also showed an abundance of ceramide and an increase of intracellular calcium. All these finding suggest that BI2536 provokes eryptosis in red blood cells, ostensibly in part due to Ca2+ entry and ceramide accumulation.
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Affiliation(s)
- Mohamed Jemaà
- Laboratory of Molecular Biotechnology of Eukaryotes, Sfax Biotechnology Centre, Sfax University, Sfax, Tunisia.
| | - Raja Mokdad Gargouri
- Laboratory of Molecular Biotechnology of Eukaryotes, Sfax Biotechnology Centre, Sfax University, Sfax, Tunisia
| | - Florian Lang
- Department of Physiology I, Eberhard-Karls University Tübingen, Tübingen, Germany
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The enemy within: lipid asymmetry in intracellular parasite-host interactions. Emerg Top Life Sci 2023; 7:67-79. [PMID: 36820809 DOI: 10.1042/etls20220089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/26/2023] [Accepted: 02/07/2023] [Indexed: 02/24/2023]
Abstract
Eukaryotic pathogens with an intracellular parasitic lifestyle are shielded from extracellular threats during replication and growth. In addition to many nutrients, parasites scavenge host cell lipids to establish complex membrane structures inside their host cells. To counteract the disturbance of the host cell plasma membrane they have evolved strategies to regulate phospholipid asymmetry. In this review, the function and importance of lipid asymmetry in the interactions of intracellular protozoan parasites with the target and immune cells of the host are highlighted. The malaria parasite Plasmodium infects red blood cells and extensively refurbishes these terminally differentiated cells. Cholesterol depletion and an altered intracellular calcium ion homeostasis can lead to disruption in erythrocyte membrane asymmetry and increased exposure of phosphatidylserine (PS). Binding to the PS receptor on monocytes and macrophages results in phagocytosis and destruction of infected erythrocytes. Leishmania parasites display apoptotic mimicry by actively enhancing PS exposure on their surface to trigger increased infection of macrophages. In extracellular Toxoplasma gondii a P4-type ATPase/CDC50 co-chaperone pair functions as a flippase important for exocytosis of specialised secretory organelles. Identification and functional analysis of parasite lipid-translocating proteins, i.e. flippases, floppases, and scramblases, will be central for the recognition of the molecular mechanisms of parasite/host interactions. Ultimately, a better understanding of parasitic diseases, host immunity, and immune escape by parasites require more research on the dynamics of phospholipid bilayers of parasites and the infected host cell.
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11
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Bartolmäs T, Pruß A, Mayer B. Three different pathways of IgM-antibody-dependent hemolysis are mainly regulated by complement. Front Immunol 2023; 14:1114509. [PMID: 36817469 PMCID: PMC9933241 DOI: 10.3389/fimmu.2023.1114509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Antibodies to red blood cells (RBCs) may hemolyze erythrocytes via Fc-mediated phagocytosis or complement-dependent. Complement activation on RBCs can be detected by C3d-direct antiglobulin test (DAT), which is the only test in immune hematology that directly targets complement. However, a positive DAT with anti-C3d cannot distinguish between C3b-mediated extravascular hemolysis, C5b-C9-mediated intravascular hemolysis and C5b-C8-mediated eryptosis. Furthermore, DAT is not suitable to estimate the strength of hemolysis. Autoimmune hemolytic anemia (AIHA) is a rare disease that is caused by autoantibodies to red blood cells that is divided in warm AIHA and in cold agglutinin disease (CAD). The causative antibodies in CAD and sometimes in warm AIHA are from the IgM class. Depending on strength of complement activation they can induce extravascular hemolysis, intravascular hemolysis and eryptosis. We studied the three types of hemolysis by use of sera from patients with CAD under various conditions. We found that additionally to the routinely applied C3d-DAT, indirect tests for complement activity (free hemoglobin and Annexin V-binding to phosphatidylserine-exposing RBCs) should be used to determine the portion of extravascular, intravascular and eryptotic hemolysis. Eryptotic hemolysis may have a significant share in clinical relevant CAD or IgM warm AIHA, which should be considered for successful treatment.
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Affiliation(s)
| | - Axel Pruß
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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van den Brink LM, Cohrs I, Golbeck L, Wächter S, Dobbelaar P, Teske E, Grünberg W. Effect of Dietary Phosphate Deprivation on Red Blood Cell Parameters of Periparturient Dairy Cows. Animals (Basel) 2023; 13:ani13030404. [PMID: 36766293 PMCID: PMC9913789 DOI: 10.3390/ani13030404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/20/2023] [Accepted: 01/22/2023] [Indexed: 01/26/2023] Open
Abstract
Postparturient hemoglobinuria is a sporadic disease characterized by intravascular hemolysis and hemoglobinuria in early lactating dairy cows. The condition has empirically been associated with phosphorus (P) deficiency or hypophosphatemia; however, the exact etiology remains obscure. This paper summarizes two controlled studies investigating the effect of P deprivation during the transition period. In Study I, 36 late pregnant dairy cows were randomly assigned to either a diet with low, or adequate, P content from four weeks before calving to four weeks after calving. In Study II, 30 late pregnant dairy cows were again assigned to either a diet with low, or adequate, P for the last four weeks before calving only. Pronounced hypophosphatemia developed during periods of restricted P supply. In early lactation, a subtle decline of the red blood cell count occurred independently of the dietary P supply. In Study I, anemia developed in 11 cows on deficient P supply, which was associated with hemoglobinuria in five cases. Neither erythrocyte total P content nor osmotic resistance of erythrocytes were altered by dietary P deprivation. Restricted dietary P supply, particularly in early lactation, may lead to postparturient hemoglobinuria, but more frequently causes clinically inapparent hemolysis and anemia in cows.
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Affiliation(s)
| | - Imke Cohrs
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, 30173 Hanover, Germany
- Clinic for Ruminants, Justus-Liebig-University Giessen, Frankfurter Strasse 104, 35392 Giessen, Germany
| | - Lennart Golbeck
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, 30173 Hanover, Germany
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Sophia Wächter
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, 30173 Hanover, Germany
| | - Paul Dobbelaar
- Department of Farm Animal Health, Utrecht University, 3584 CL Utrecht, The Netherlands
| | - Erik Teske
- Department of Clinical Sciences, Utrecht University, 3584 CM Utrecht, The Netherlands
| | - Walter Grünberg
- Department of Farm Animal Health, Utrecht University, 3584 CL Utrecht, The Netherlands
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, 30173 Hanover, Germany
- Clinic for Ruminants, Justus-Liebig-University Giessen, Frankfurter Strasse 104, 35392 Giessen, Germany
- Correspondence: ; Tel.: +49-0-641-99-38670
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13
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Tkachenko A, Havránek O. Redox Status of Erythrocytes as an Important Factor in Eryptosis and Erythronecroptosis. Folia Biol (Praha) 2023; 69:116-126. [PMID: 38410969 DOI: 10.14712/fb2023069040116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Overall, reactive oxygen species (ROS) signalling significantly contributes to initiation and mo-dulation of multiple regulated cell death (RCD) pathways. Lately, more information has become available about RCD modalities of erythrocytes, including the role of ROS. ROS accumulation has therefore been increasingly recognized as a critical factor involved in eryptosis (apoptosis of erythrocytes) and erythro-necroptosis (necroptosis of erythrocytes). Eryptosis is a Ca2+-dependent apoptosis-like RCD of erythrocytes that occurs in response to oxidative stress, hyperosmolarity, ATP depletion, and a wide range of xenobiotics. Moreover, eryptosis seems to be involved in the pathogenesis of multiple human diseases and pathological processes. Several studies have reported that erythrocytes can also undergo necroptosis, a lytic RIPK1/RIPK3/MLKL-mediated RCD. As an example, erythronecroptosis can occur in response to CD59-specific pore-forming toxins. We have systematically summarized available studies regarding the involvement of ROS and oxidative stress in these two distinct RCDs of erythrocytes. We have focused specifically on cellular signalling pathways involved in ROS-mediated cell death decisions in erythrocytes. Furthermore, we have summarized dysregulation of related erythrocytic antioxidant defence systems. The general concept of the ROS role in eryptotic and necroptotic cell death pathways in erythrocytes seems to be established. However, further studies are required to uncover the complex role of ROS in the crosstalk and interplay between the survival and RCDs of erythrocytes.
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Affiliation(s)
- Anton Tkachenko
- BIOCEV, First Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Ondřej Havránek
- 1st Department of Medicine - Department of Haematology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic.
- BIOCEV, First Faculty of Medicine, Charles University, Vestec, Czech Republic.
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Cigarette Smoke Extract Induces p38 MAPK-Initiated, Fas-Mediated Eryptosis. Int J Mol Sci 2022; 23:ijms232314730. [PMID: 36499060 PMCID: PMC9738679 DOI: 10.3390/ijms232314730] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/29/2022] Open
Abstract
Eryptosis is a physiological mechanism for the clearance of senescent or damaged erythrocytes by phagocytes. Excessive eryptosis is stimulated under several pathologies and associated with endothelial injury and thrombosis. Cigarette smoke (CS) is an established risk factor for vascular diseases and cigarette smokers have high-levels of eryptotic erythrocytes. This study, for the first time, investigates the mechanism by which CS damages red blood cells (RBCs). CS extract (CSE) from commercial cigarettes was prepared and standardized for nicotine content. Cytofluorimetric analysis demonstrated that treatment of human RBCs with CSE caused dose-dependent, phosphatidylserine externalization and cell shrinkage, hallmarks of apoptotic death. CSE did not affect cellular levels of Ca2+, reactive oxygen species (ROS) or glutathione (GSH). Immununoprecipitation and immunoblotting revealed the assembly of the death-inducing signaling complex (DISC) and oligomerization of Fas receptor as well as cleaved caspase-8 and caspase-3 within 6 h from the treatment. At the same time-interval, CSE elicited neutral sphyngomielinase (nSMase) activity-dependent ceramide formation and phosphorylation of p38 MAPK. Through specific inhibitors' nSMase, caspase-8 or p38 MAPK activities, we demonstrated that p38 MAPK activation is required for caspase-8-mediated eryptosis and that ceramide generation is initiator caspase-dependent. Finally, ex vivo analysis detected phosphorylated p38 MAPK (p-p38) and Fas-associated signaling complex in erythrocytes from cigarette smokers. In conclusion, our study demonstrates that CSE exposure induces in erythrocytes an extrinsic apoptotic pathway involving p38 MAPK-initiated DISC formation followed by activation of caspase-8/caspase-3 via ceramide formation.
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15
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Virzì GM, Milan Manani S, Marturano D, Clementi A, Lerco S, Tantillo I, Giuliani A, Battaglia GG, Ronco C, Zanella M. Eryptosis in Peritoneal Dialysis-Related Peritonitis: The Potential Role of Inflammation in Mediating the Increase in Eryptosis in PD. J Clin Med 2022; 11:jcm11236918. [PMID: 36498493 PMCID: PMC9737953 DOI: 10.3390/jcm11236918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022] Open
Abstract
Background: Peritonitis and exit site infections are the main complications of patients treated with peritoneal dialysis (PD). Erythrocytes (red blood cells—RBCs) are very sensitive cells, and they are characterized by eryptosis (programmed cell death). The purpose of this research was to assess eryptosis in PD patients with PD-related peritonitis and its connection to inflammatory markers in vivo and in vitro. Material and Methods: In this study, we included 65 PD patients: 34 PD patients without systemic inflammation nor PD-related peritonitis in the previous 3 months, and 31 PD patients with an acute episode of PD-related peritonitis. We measured C-reactive protein (CRP) and cytokine (IL-1β, IL-6, and IL-18) levels as systemic inflammatory markers. Eryptosis was evaluated by flow cytometric analyses in freshly isolated RBCs. The induction of eryptosis due to in vitro exposure to IL-1β, IL-6, and IL-18 was verified. Results: Eryptosis was significantly higher in PD patients with peritonitis (9.6%; IQR 4.2−16.7), compared to the those in the other group (2.7%; IQR 1.6−3.9) (p < 0.0001). Significant positive correlations were noticed between eryptosis and CRP, IL-1β, and IL-6. RBCs, incubated with greater concentrations of all cytokines in vitro, resulted in significantly higher occurrences of eryptosis in comparison with those incubated with lower concentration and with untreated cell (p < 0.05), and for those with extensive exposure (p < 0.05). Conclusion: In conclusion, we investigated a potential relationship between systemic eryptosis and the in vivo and in vitro inflammatory damage of the peritoneal membrane during peritonitis. Thus, the presented results revealed that upregulated inflammatory markers and immune system dysregulation could be the cause of high levels of systemic eryptosis during PD-related peritonitis.
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Affiliation(s)
- Grazia Maria Virzì
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
- Correspondence: ; Tel.: +39-0444757714
| | - Sabrina Milan Manani
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
| | - Davide Marturano
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
- Department of Medicine (DIMED), University of Padua, 35100 Padua, Italy
| | - Anna Clementi
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
- Department of Medicine (DIMED), University of Padua, 35100 Padua, Italy
| | - Silvia Lerco
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
- Department of Nephrology and Dialysis, Santa Marta and Santa Venera Hospital, 95024 Catania, Italy
| | - Ilaria Tantillo
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
| | - Anna Giuliani
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
| | | | - Claudio Ronco
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
- Department of Nephrology and Dialysis, Santa Marta and Santa Venera Hospital, 95024 Catania, Italy
| | - Monica Zanella
- Department of Nephrology, Dialysis and Transplant, St Bortolo Hospital, 36100 Vicenza, Italy
- International Renal Research Institute, Vicenza (IRRIV), 36100 Vicenza, Italy
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16
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Xia F, Keep RF, Ye F, Holste KG, Wan S, Xi G, Hua Y. The Fate of Erythrocytes after Cerebral Hemorrhage. Transl Stroke Res 2022; 13:655-664. [PMID: 35066815 PMCID: PMC9782724 DOI: 10.1007/s12975-021-00980-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/16/2021] [Accepted: 12/16/2021] [Indexed: 02/05/2023]
Abstract
After a cerebral hemorrhage (intracerebral, subarachnoid, and intraventricular), extravasated blood contributes to both initial brain injury, via physical disruption and mass effect, and secondary injury, through the release of potentially neurotoxic and pro-inflammatory factors such as hemoglobin, iron, and peroxiredoxin-2. Erythrocytes are a major blood component and are a source of such damaging factors. Erythrolysis after cerebral hemorrhage releases potential neurotoxins, contributing to brain injury and edema. Alternatively, erythrocyte phagocytosis via microglia or macrophages may limit the spill of neurotoxins therefore limiting subsequent brain injury. The aim of this review is to discuss the process of phagocytosis of erythrocytes by microglia or macrophages after cerebral hemorrhage, the effect of erythrolysis on brain injury, novel mechanisms of erythrocyte and phagocyte egress from the brain, and exciting new targets in this pathway to attenuate brain injury. Understanding the fate of erythrocytes after cerebral hemorrhage may uncover additional potential interventions for clinical translational research.
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Affiliation(s)
- Fan Xia
- Department of Neurosurgery, University of Michigan, 5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Richard F Keep
- Department of Neurosurgery, University of Michigan, 5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Fenghui Ye
- Department of Neurosurgery, University of Michigan, 5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Katherine G Holste
- Department of Neurosurgery, University of Michigan, 5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Shu Wan
- Department of Neurosurgery, University of Michigan, 5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA
| | - Guohua Xi
- Department of Neurosurgery, University of Michigan, 5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA.
| | - Ya Hua
- Department of Neurosurgery, University of Michigan, 5018 BSRB, 109 Zina Pitcher Place, Ann Arbor, MI, 48109-2200, USA.
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17
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Loyola-Leyva A, Loyola-Rodríguez JP, Barquera S, González FJ, Camacho-Lopez S, Terán-Figueroa Y. Differences in erythrocytes size and shape in prediabetes and diabetes assessed by two microscopy techniques and its association with dietary patterns. Pilot study. Microsc Res Tech 2022; 85:3726-3735. [PMID: 36165223 DOI: 10.1002/jemt.24238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 08/08/2022] [Accepted: 09/03/2022] [Indexed: 11/06/2022]
Abstract
Hemorheology and microcirculation alterations are caused by erythrocyte size and shape (ESS) modifications. People´s diets can alter erythrocyte functions and membrane fluidity by changing cell membrane components. The aim was to identify differences in ESS obtained by scanning electron (SEM) and atomic force microscopy (AFM) in people with prediabetes and type 2 diabetes (T2DM) and assess their relationship with dietary patterns. The study population included 31 participants (14 healthy, 11 with prediabetes, and 6 with T2DM). Dietary intake was assessed by a food frequency questionnaire, and dietary patterns were obtained using principal component analysis. ESS (diameter, height, axial ratio, thickness, and concave depth) were obtained by SEM and AFM. Differences in ESS between groups were observed with SEM (height) and AFM (height, axial ratio, and concave depth). T2DM presented smaller erythrocytes, more elongated and more altered forms. Two dietary patterns were identified: (1) Unhealthy: more refined cereals, high-fat dairy, fast food, sugary beverages, and fewer fruits, fish, seafood, low-fat dairy, and water. (2) Prudent: higher consumption of refined cereals, vegetables, poultry, low-fat dairy and nuts, and lower tortillas, eggs, high-fat dairy, and legumes. Tertile 3 of the Unhealthy dietary pattern had 80% of healthy participants. A difference in diameter and height (0.44 and 0.32 μm, respectively) obtained by SEM was observed when comparing tertile 2 (smaller erythrocytes) versus tertile 3 in the Unhealthy dietary pattern. SEM and AFM are excellent tools to assess ESS. Unhealthy dietary patterns might be associated with altered ESS. HIGHLIGHTS: SEM and AFM are excellent tools to assess erythrocyte size and shape modifications. Two dietary patterns were identified: healthy and prudent. Smaller erythrocytes were observed in the second tertile of the unhealthy pattern.
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Affiliation(s)
- Alejandra Loyola-Leyva
- Terahertz Science and Technology National Lab, Coordination for Innovation and Application of Science and Technology (Coordinación para la Innovación y Aplicación de la Ciencia y Tecnología, CIACyT), San Luis Potosí, Mexico
| | | | - Simon Barquera
- Center for Nutrition and Health Research, National Institute of Public Health (Instituto Nacional de Salud Pública), Morelos, Mexico
| | - Francisco Javier González
- Terahertz Science and Technology National Lab, Coordination for Innovation and Application of Science and Technology (Coordinación para la Innovación y Aplicación de la Ciencia y Tecnología, CIACyT), San Luis Potosí, Mexico
| | - Santiago Camacho-Lopez
- Department of Optics, Center for Scientific Research and Higher Education of Ensenada (Centro de Investigación Científica y de Educación Superior de Ensenada, CICESE), Ensenada, Baja California, Mexico
| | - Yolanda Terán-Figueroa
- Faculty of Nursing and Nutrition, Autonomous University of San Luis Potosí (Universidad Autónoma de San Luis Potosí, UASLP), San Luis Potosí, Mexico
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18
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In Vitro Induction of Eryptosis by Uremic Toxins and Inflammation Mediators in Healthy Red Blood Cells. J Clin Med 2022; 11:jcm11185329. [PMID: 36142976 PMCID: PMC9501441 DOI: 10.3390/jcm11185329] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Eryptosis is the stress-induced RBC (red blood cell) death mechanism. It is known that eryptosis is largely influenced by plasma and blood composition, and that it is accelerated in patients affected by chronic kidney disease (CKD). The aim of this study is to evaluate the eryptosis rate in healthy RBCs treated with different concentration of IL-6, IL-1β, urea and p-cresol, comparable to plasmatic level of CKD patients, at different time points. We exposed healthy RBCs to increasing concentrations of IL-6, IL-1β, urea and p-cresol. Morphological markers of eryptosis (cell membrane scrambling, cell shrinkage and PS exposure at RBC surface) were evaluated by flow cytometric analyses. The cytotoxic effect of cytokines and uremic toxins were analyzed in vitro on healthy RBCs at 4, 8 and 24 h. Morphology of treated RBCs was dramatically deranged, and the average cell volume was significantly higher in RBCs exposed to higher concentration of all molecules (all, p < 0.001). Furthermore, healthy RBCs incubated with each molecules demonstrated a significant increase in eryptosis. Cytofluorimetric analysis of eryptosis highlighted significantly higher cell death rate in RBCs incubated with a higher concentration of both cytokines compared with RBCs incubated with a lower concentration (all, p < 0.05). In conclusion, our data show that cytokines and uremic toxins have a harmful effect on RBCs viability and trigger eryptosis. Further studies are necessary to validate these results in vivo and to associate abnormal eryptosis with cytokine levels in CKD patients. The eryptosis pathway could, moreover, become a new promising target for anemia management in CKD patients.
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19
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The potential role of ischaemia-reperfusion injury in chronic, relapsing diseases such as rheumatoid arthritis, Long COVID, and ME/CFS: evidence, mechanisms, and therapeutic implications. Biochem J 2022; 479:1653-1708. [PMID: 36043493 PMCID: PMC9484810 DOI: 10.1042/bcj20220154] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 02/07/2023]
Abstract
Ischaemia–reperfusion (I–R) injury, initiated via bursts of reactive oxygen species produced during the reoxygenation phase following hypoxia, is well known in a variety of acute circumstances. We argue here that I–R injury also underpins elements of the pathology of a variety of chronic, inflammatory diseases, including rheumatoid arthritis, ME/CFS and, our chief focus and most proximally, Long COVID. Ischaemia may be initiated via fibrin amyloid microclot blockage of capillaries, for instance as exercise is started; reperfusion is a necessary corollary when it finishes. We rehearse the mechanistic evidence for these occurrences here, in terms of their manifestation as oxidative stress, hyperinflammation, mast cell activation, the production of marker metabolites and related activities. Such microclot-based phenomena can explain both the breathlessness/fatigue and the post-exertional malaise that may be observed in these conditions, as well as many other observables. The recognition of these processes implies, mechanistically, that therapeutic benefit is potentially to be had from antioxidants, from anti-inflammatories, from iron chelators, and via suitable, safe fibrinolytics, and/or anti-clotting agents. We review the considerable existing evidence that is consistent with this, and with the biochemical mechanisms involved.
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20
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Fang M, Xia F, Chen Y, Shen Y, Ma L, You C, Tao C, Hu X. Role of Eryptosis in Hemorrhagic Stroke. Front Mol Neurosci 2022; 15:932931. [PMID: 35966018 PMCID: PMC9371462 DOI: 10.3389/fnmol.2022.932931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Abstract
Erythrocytes undergo certain morphological changes resembling apoptosis during senescence or in an abnormal state/site, which is termed eryptosis. This process is characterized by phosphatidylserine (PS) exposure, membrane blebbing, and cell shrinkage. Eryptotic erythrocytes are subsequently removed via macrophage-mediated efferocytosis. In hemorrhagic stroke (HS), blood within an artery rapidly bleeds into the brain tissue or the subarachnoid space, resulting in severe neurological deficits. A hypoxic, over-oxidative, and pro-inflammatory microenvironment in the hematoma leads to oxidative stress, hyperosmotic shock, energy depletion, and Cl– removal in erythrocytes, which eventually triggers eryptosis. In addition, eryptosis following intracerebral hemorrhage favors hematoma clearance, which sheds light on a common mechanism of intrinsic phagocytosis. In this review, we summarized the canonical mechanisms of eryptosis and discussed its pathological conditions associated with HS. Understanding the role of eryptosis in HS may uncover additional potential interventions for further translational clinical research.
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Affiliation(s)
- Mei Fang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Fan Xia
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yuqi Chen
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yuke Shen
- West China School of Public Health, Sichuan University, Chengdu, China
| | - Lu Ma
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Chao You
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Chuanyuan Tao
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Chuanyuan Tao,
| | - Xin Hu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
- Xin Hu,
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21
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Li D, Zheng X, Zhang Y, Li X, Chen X, Yin Y, Hu J, Li J, Guo M, Wang X. What Should Be Responsible for Eryptosis in Chronic Kidney Disease? Kidney Blood Press Res 2022; 47:375-390. [PMID: 35114677 DOI: 10.1159/000522133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 01/21/2022] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Renal anemia is an important complication of chronic kidney disease (CKD). In addition to insufficient secretion of erythropoietin (EPO) and erythropoiesis disorders, the impact of eryptosis on renal anemia demands attention. However, a systemic analysis concerning the pathophysiology of eryptosis has not been expounded. SUMMARY The complicated conditions in CKD patients, including oxidative stress, osmotic stress, metabolic stress, accumulation of uremic toxins, and iron deficiency, affect the normal skeleton structure of red blood cells (RBCs) and disturbs ionic homeostasis, causing phosphatidylserine to translocate to the outer lobules of the RBC membrane that leads to early elimination and/or shortening of the RBC lifespan. Inadequate synthesis of RBCs cannot compensate for their accelerated destruction, thus exacerbating renal anemia. Meanwhile, EPO treatment alone will not reverse renal anemia. A variety of eryptosis inhibitors have so far been found, but evidence of their effectiveness in the treatment of CKD remains to be established. KEY MESSAGES In this review, the pathophysiological processes and factors influencing eryptosis in CKD were elucidated. The aim of this review was to underline the importance of eryptosis in renal anemia and determine some promising research directions or possible therapeutic targets to correct anemia in CKD.
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Affiliation(s)
- Dongxin Li
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China,
| | - Xujuan Zheng
- Health Science Centre, Shenzhen University, Shenzhen, China
| | - Yunxia Zhang
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China
| | - Xiangling Li
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China
| | - Xuexun Chen
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China
| | - Yonghua Yin
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College, Chengdu, China
| | - Jingwen Hu
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China
| | - Jialin Li
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China
| | - Min Guo
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China
| | - Xiangming Wang
- Department of Nephrology, Clinical Medicine College & Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, China
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22
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Eligini S, Porro B, Werba JP, Capra N, Genovese S, Greco A, Cavalca V, Banfi C. Oxidative Stress and Arginine/Nitric Oxide Pathway in Red Blood Cells Derived from Patients with Prediabetes. Biomedicines 2022; 10:biomedicines10061407. [PMID: 35740426 PMCID: PMC9219800 DOI: 10.3390/biomedicines10061407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/09/2022] [Accepted: 06/11/2022] [Indexed: 11/25/2022] Open
Abstract
The effects of the oral glucose tolerance test (OGTT) on red blood cells (RBCs) have not been thoroughly investigated, although it is known that the ingestion of 75 g of glucose during OGTT results in a systemic state of inflammation and oxidative stress. Therefore, we evaluated the effect of OGTT on oxidative stress and L-arginine/Nitric Oxide (L-Arg/NO) metabolic pathway in RBCs obtained from patients with prediabetes. Blood samples were collected from all participants before (T0) and at 10 (T1), 20 (T2), 30 (T3), 60 (T4), 90 (T5), 120 (T6), 150 (T7), and 180 (T8) minutes after glucose loading. Results showed a significant increase in oxidative stress status characterized by a rise in the GSSG/GSH ratio at T4 and T6 that increased in parallel with a reduction of NO production in RBCs. In addition, in this time frame, increased exposure of phosphatidylserine on RBCs membrane was observed. These metabolic modifications were rescued at T8, together with an increase in activated RBC NO synthase expression. These findings provide a possible explanation of the phenomena occurring after glucose loading and suggest that, even in the early stages of diabetes, it may be important to avoid acute variations in glycemia in order to prevent diabetic complications.
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Affiliation(s)
- Sonia Eligini
- Centro Cardiologico Monzino, IRCCS, 20138 Milano, Italy; (S.E.); (B.P.); (N.C.); (S.G.); (A.G.); (C.B.)
| | - Benedetta Porro
- Centro Cardiologico Monzino, IRCCS, 20138 Milano, Italy; (S.E.); (B.P.); (N.C.); (S.G.); (A.G.); (C.B.)
| | - José Pablo Werba
- Centro Cardiologico Monzino, IRCCS, 20138 Milano, Italy; (S.E.); (B.P.); (N.C.); (S.G.); (A.G.); (C.B.)
- Correspondence:
| | - Nicolò Capra
- Centro Cardiologico Monzino, IRCCS, 20138 Milano, Italy; (S.E.); (B.P.); (N.C.); (S.G.); (A.G.); (C.B.)
| | - Stefano Genovese
- Centro Cardiologico Monzino, IRCCS, 20138 Milano, Italy; (S.E.); (B.P.); (N.C.); (S.G.); (A.G.); (C.B.)
| | - Arianna Greco
- Centro Cardiologico Monzino, IRCCS, 20138 Milano, Italy; (S.E.); (B.P.); (N.C.); (S.G.); (A.G.); (C.B.)
| | - Viviana Cavalca
- Dipartimento di Scienze Cliniche e di Comunità, Università Degli Studi di Milano, 20122 Milano, Italy;
| | - Cristina Banfi
- Centro Cardiologico Monzino, IRCCS, 20138 Milano, Italy; (S.E.); (B.P.); (N.C.); (S.G.); (A.G.); (C.B.)
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23
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Mei C, Peng F, Yin W, Xu W, Yao R, Li B, Zhou R, Fan X, Li N. Increased suicidal erythrocyte death in patients with hepatitis B-related acute-on-chronic liver failure. Am J Physiol Gastrointest Liver Physiol 2022; 323:G9-G20. [PMID: 35411804 DOI: 10.1152/ajpgi.00050.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Anemia is a common complication of hepatitis B-related acute-on-chronic liver failure (HB-ACLF). Eryptosis, a suicidal erythrocyte death characterized by phosphatidylserine (PS) externalization and red blood cell-derived microparticle (RMP) generation, decreases erythrocyte lifespan. Herein, we investigated whether enhanced eryptosis is involved in the anemia pathophysiology associated with HB-ACLF. PS exposure, cell volume, cytosolic Ca2+, and reactive oxygen species (ROS) production were determined using flow cytometry. RMPs were extracted using a polyethylene glycol (PEG)-based method. We found that hemoglobin (Hb) and hematocrit (Hct) were significantly lower in patients with HB-ACLF than in healthy controls (HC), patients with chronic hepatitis B (CHB), and patients with cirrhosis. The direct antiglobulin test positive rate was 75.9% in patients with HB-ACLF while its intensity was associated with anemia. The ratio of abnormal erythrocytes was higher in patients with HB-ACLF than in HC, CHB, and cirrhosis. The percentage of PS-exposed erythrocytes was higher in patients with HB-ACLF (2.07 ± 0.11%) compared with HC (0.37 ± 0.05%), CHB (0.38 ± 0.03%), and cirrhosis (0.38 ± 0.04%). The cytosolic Ca2+ and ROS abundance were also higher in patients with HB-ACLF compared with HC, patients with CHB, and patients with cirrhosis, and were inversely correlated with the anemia in patients with HB-ACLF. PS exposure of erythrocytes collected from HC was significantly pronounced following incubation in plasma from patients with HB-ACLF compared with incubation in plasma from HC. The protein concentration and RMPs size significantly increased in patients with HB-ACLF compared with HC. Thus, the anemia in patients with HB-ACLF is associated with increased eryptosis, which is partially triggered by increased cytosolic Ca2+ and oxidative stress.NEW & NOTEWORTHY Acute chronic liver failure (ACLF) is a critical syndrome characterized by multiple organ failures and high short-term mortality. A common complication of HB-ACLF is anemia, however, the mechanism of anemia in HB-ACLF remains to be elucidated. We confirm that the accelerated eryptosis is involved in the pathophysiology of anemia associated with HB-ACLF, which progressively aggravates the clinical outcome. Our study illustrates the mechanism regarding the anemia pathogenesis of HB-ACLF, which may be utilized further toward therapeutic ends.
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Affiliation(s)
- Cheng Mei
- Department of Blood Transfusion, Xiangya Hospital, Clinical Transfusion Research Center, Central South University, Changsha, Hunan, China
| | - Fang Peng
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenyu Yin
- Department of Blood Transfusion, Xiangya Hospital, Clinical Transfusion Research Center, Central South University, Changsha, Hunan, China
| | - Wei Xu
- Department of Blood Transfusion, Xiangya Hospital, Clinical Transfusion Research Center, Central South University, Changsha, Hunan, China
| | - Run Yao
- Department of Blood Transfusion, Xiangya Hospital, Clinical Transfusion Research Center, Central South University, Changsha, Hunan, China
| | - Bijuan Li
- Department of Blood Transfusion, Xiangya Hospital, Clinical Transfusion Research Center, Central South University, Changsha, Hunan, China
| | - Rongrong Zhou
- Department of Infectious Diseases, Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuegong Fan
- Department of Infectious Diseases, Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ning Li
- Department of Blood Transfusion, Xiangya Hospital, Clinical Transfusion Research Center, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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24
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Liu J, Chaudhry M, Bai F, Chuang J, Chaudhry H, Al-Astal AEY, Nie Y, Sollars V, Sodhi K, Seligman P, Shapiro JI. Blockage of the Na-K-ATPase signaling-mediated oxidant amplification loop elongates red blood cell half-life and ameliorates uremic anemia induced by 5/6th PNx in C57BL/6 mice. Am J Physiol Renal Physiol 2022; 322:F655-F666. [PMID: 35435001 PMCID: PMC9076417 DOI: 10.1152/ajprenal.00189.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 03/21/2022] [Accepted: 04/06/2022] [Indexed: 11/22/2022] Open
Abstract
We have previously demonstrated that the Na-K-ATPase signaling-mediated oxidant amplification loop contributes to experimental uremic cardiomyopathy and anemia induced by 5/6th partial nephrectomy (PNx). This process can be ameliorated by systemic administration of the peptide pNaKtide, which was designed to block this oxidant amplification loop. The present study demonstrated that the PNx-induced anemia is characterized by marked decreases in red blood cell (RBC) survival as assessed by biotinylated RBC clearance and eryptosis as assessed by annexin V binding. No significant change in iron homeostasis was observed. Examination of plasma samples demonstrated that PNx induced significant increases in systemic oxidant stress as assessed by protein carbonylation, plasma erythropoietin concentration, and blood urea nitrogen. Systemic administration of pNaKtide, but not NaKtide (pNaKtide without the TAT leader sequence) and a scramble "pNaKtide" (sc-pNaKtide), led to the normalization of hematocrit, RBC survival, and plasma protein carbonylation. Administration of the three peptides had no significant effect on PNx-induced increases in plasma erythropoietin and blood urea nitrogen without notable changes in iron metabolism. These data indicate that blockage of the Na-K-ATPase signaling-mediated oxidant amplification loop ameliorates the anemia of experimental renal failure by increasing RBC survival.NEW & NOTEWORTHY The anemia of CKD is multifactorial, and the current treatment based primarily on stimulating bone marrow production of RBCs with erythropoietin or erythropoietin analogs is unsatisfactory. In a murine model of CKD that is complicated by anemia, blockade of Na-K-ATPase signaling with a specific peptide (pNaKtide) ameliorated the anemia primarily by increasing RBC survival. Should these results be confirmed in patients, this strategy may allow for novel and potentially additive strategies to treat the anemia of CKD.
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Affiliation(s)
- Jiang Liu
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Muhammad Chaudhry
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Fang Bai
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Justin Chuang
- Department of Medicine, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Hibba Chaudhry
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Ala-Eddin Yassin Al-Astal
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Ying Nie
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Vincent Sollars
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Komal Sodhi
- Department of Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Paul Seligman
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Joseph I Shapiro
- Department of Medicine, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
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25
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Notariale R, Perrone P, Mele L, Lettieri G, Piscopo M, Manna C. Olive Oil Phenols Prevent Mercury-Induced Phosphatidylserine Exposure and Morphological Changes in Human Erythrocytes Regardless of Their Different Scavenging Activity. Int J Mol Sci 2022; 23:ijms23105693. [PMID: 35628502 PMCID: PMC9147954 DOI: 10.3390/ijms23105693] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 02/05/2023] Open
Abstract
Phosphatidylserine (PS) translocation to the external membrane leaflet represents a key mechanism in the pathophysiology of human erythrocytes (RBC) acting as an "eat me" signal for the removal of aged/stressed cells. Loss of physiological membrane asymmetry, however, can lead to adverse effects on the cardiovascular system, activating a prothrombotic activity. The data presented indicate that structurally related olive oil phenols prevent cell alterations induced in intact human RBC exposed to HgCl2 (5-40 µM) or Ca2+ ionophore (5 µM), as measured by hallmarks including PS exposure, reactive oxygen species generation, glutathione depletion and microvesicles formation. The protective effect is observed in a concentration range of 1-30 µM, hydroxytyrosol being the most effective; its in vivo metabolite homovanillic alcohol still retains the biological activity of its dietary precursor. Significant protection is also exerted by tyrosol, in spite of its weak scavenging activity, indicating that additional mechanisms are involved in the protective effect. When RBC alterations are mediated by an increase in intracellular calcium, the protective effect is observed at higher concentrations, indicating that the selected phenols mainly act on Ca2+-independent mechanisms, identified as protection of glutathione depletion. Our findings strengthen the nutritional relevance of olive oil bioactive compounds in the claimed health-promoting effects of the Mediterranean Diet.
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Affiliation(s)
- Rosaria Notariale
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.N.); (P.P.)
| | - Pasquale Perrone
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.N.); (P.P.)
| | - Luigi Mele
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Gennaro Lettieri
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (G.L.); (M.P.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (G.L.); (M.P.)
| | - Caterina Manna
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.N.); (P.P.)
- Correspondence:
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26
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Pretorius L, Taute H, Van Rooy M, Oberholzer HM. Investigating the ultrastructural and viscoelastic characteristics of whole blood after exposure to the heavy metals cadmium, lead and chromium, alone and in combination. Ultrastruct Pathol 2022; 46:323-333. [DOI: 10.1080/01913123.2022.2075999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- L Pretorius
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Arcadia, South Africa
| | - H Taute
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Arcadia, South Africa
| | - M Van Rooy
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia, South Africa
| | - HM Oberholzer
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Arcadia, South Africa
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27
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Evaluation of eryptosis in patients with chronic kidney disease. Int Urol Nephrol 2022; 54:2919-2928. [PMID: 35469112 DOI: 10.1007/s11255-022-03207-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 04/09/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Anemia in patients with chronic kidney disease (CKD) is the result of reduced erythropoietin, disturbed erythropoiesis and decreased lifespan of circulating erythrocytes. Excessive eryptosis or premature suicidal erythrocyte death is characterized by cell shrinkage and phosphatidylserine externalization. This study aimed to explore accelerated eryptosis and accompanying biochemical alterations in CKD patients. PATIENTS AND METHODS A total of 106 CKD patients (59 predialysis [PreD] patients, 26 haemodialysis [HD] patients and 21 peritoneal dialysis [PD] patients) and a control group composed of 29 healthy volunteers were included in this study. Data on superoxide dismutase (SOD) activity (U/mL), annexin-V binding (mean fluorescent intensity, MFI) and intracellular calcium ([Ca2+]i; MFI) as well as the hematologic and biochemical parameters were recorded. RESULTS The [Ca2+]i levels were 3.05 ± 1.66 MFI, 2.24 ± 0.99 MFI, 2.38 ± 0.87 MFI and 1.71 ± 0.46 MFI in the PreD, HD, PD and control groups, respectively. Other than significantly higher [Ca2+]i levels in the PreD group than in the control group (p < 0.001), no significant difference was noted between study groups in terms of [Ca2+]i. Annexin-V binding was 1.05 ± 0.99 MFI in PreD group, 1.15 ± 0.56 MFI in HD group, 1.06 ± 0.87 MFI in PD group, and 0.88 ± 0.86 MFI in controls. Annexin-V binding was significantly higher in PreD, HD and PD groups compared with the control group (p < 0.001 for each). SOD activity was 0.07 ± 0.07 in the PreD group, 0.13 ± 0.08 in the HD group, 0.14 ± 0.07 in the PD group, and 0.03 ± 0.01 in the control group. SOD activity in both HD and PD groups were significantly higher than control and PreD groups (p < 0.001 for each). Lower albumin, higher ferritin, and higher parathormon levels were found to be correlated with eryptosis biomarkers. Patients treated vs. non-treated with calcium channel blockers had significantly lower annexin-V binding levels (p = 0.013). Patients treated vs. non-treated with erythropoietin (EPO) had elevated annexin-V binding level (p < 0.001) and lower [Ca2+]i (p = 0.014). CONCLUSION In conclusion, our findings revealed the presence accelerated eryptosis, as a potential contributing factor to development of anemia, in patients with CKD stages 3-5D. Inflamation and parathormon can also accelerate eryptosis. Favorable effect of CCB and EPO on eryptosis needs to be confirmed in larger scale studies.
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28
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Sattar T, Jilani K, Parveen K, Mushataq Z, Nawaz H, Khan MAB. Induction of Erythrocyte Membrane Blebbing by Methotrexate-Induced Oxidative Stress. Dose Response 2022; 20:15593258221093853. [PMID: 35449724 PMCID: PMC9016546 DOI: 10.1177/15593258221093853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Methotrexate (MTX) is a common chemotherapeutical agent and folate antagonist with
reported apoptotic activity in nucleated cells. The presented research work was planned to
investigate the eryptotic effects of methotrexate after the exposure of erythrocytes to
therapeutical doses (10–15 μM) of methotrexate. Eryptosis and the role of calcium in the
stimulation of membrane blebbing were evaluated through the determination of mean cell
volume. Oxidative stress induced by methotrexate (10–15 μM) was determined by
antioxidative enzyme activities. Cytotoxic activity against human erythrocytes was
examined through hemolysis assay. Exposure of erythrocytes to methotrexate results in
significant reduction of superoxide dismutase, catalase, and superoxide dismutase
activities at 10 and 15 μM in comparison to the untreated cells. Erythrocytes mean cell
volume (MCV) was increased after 48 hours exposure of erythrocytes to methotrexate
(10 μM). Significantly increased hemolysis percentage was observed at 10 μM after 48 hours
incubation of erythrocytes with methotrexate. The results of the study suggested that the
therapeutical doses (10–15 μM) of methotrexate may lead to increase in eryptotic and
hemolytic activity of erythrocytes through free radical generation and subsequent calcium
entry.
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Affiliation(s)
- Tayyba Sattar
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Kashif Jilani
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Khalida Parveen
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Zahid Mushataq
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Haq Nawaz
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
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29
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Anti-Eryptotic Activity of Food-Derived Phytochemicals and Natural Compounds. Int J Mol Sci 2022; 23:ijms23063019. [PMID: 35328440 PMCID: PMC8951285 DOI: 10.3390/ijms23063019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 01/05/2023] Open
Abstract
Human red blood cells (RBCs), senescent or damaged due to particular stress, can be removed by programmed suicidal death, a process called eryptosis. There are various molecular mechanisms underlying eryptosis. The most frequent is the increase in the cytoplasmic concentration of Ca2+ ions, later exposure of erythrocytes to oxidative stress, hyperosmotic shock, ceramide formation, stimulation of caspases, and energy depletion. Phosphatidylserine (PS) exposed by eryptotic RBCs due to interaction with endothelial CXC-Motiv-Chemokin-16/Scavenger-receptor, causes the RBCs to adhere to vascular wall with consequent damage to the microcirculation. Eryptosis can be triggered by various xenobiotics and endogenous molecules, such as high cholesterol levels. The possible diseases associated with eryptosis are various, including anemia, chronic kidney disease, liver failure, diabetes, hypertension, heart failure, thrombosis, obesity, metabolic syndrome, arthritis, and lupus. This review addresses and collates the existing ex vivo and animal studies on the inhibition of eryptosis by food-derived phytochemicals and natural compounds including phenolic compounds (PC), alkaloids, and other substances that could be a therapeutic and/or co-adjuvant option in eryptotic-driven disorders, especially if they are introduced through the diet.
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30
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Stephenson D, Nemkov T, Qadri SM, Sheffield WP, D’Alessandro A. Inductively-Coupled Plasma Mass Spectrometry-Novel Insights From an Old Technology Into Stressed Red Blood Cell Physiology. Front Physiol 2022; 13:828087. [PMID: 35197866 PMCID: PMC8859330 DOI: 10.3389/fphys.2022.828087] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/17/2022] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Ion and metal homeostasis are critical to red blood cell physiology and Inductively Coupled Plasma (ICP) is a decades old approach to pursue elemental analysis. Recent evolution of ICP has resulted in its coupling to mass spectrometry (MS) instead of atomic absorption/emission. METHODS Here we performed Inductively-coupled plasma mass spectrometry (ICP-MS) measurements of intra- and extra-cellular Na, K, Ca, Mg, Fe, and Cu in red blood cells undergoing ionic, heat, or starvation stress. Results were correlated with Ca measurements from other common platforms (e.g., fluorescence-based approaches) and extensive measurements of red blood cell metabolism. RESULTS All stresses induced significant intra- and extracellular alterations of all measured elements. In particular, ionomycin treatment or hypertonic stress significantly impacted intracellular sodium and extracellular potassium and magnesium levels. Iron efflux was observed as a function of temperatures, with ionic and heat stress at 40°C causing the maximum decrease in intracellular iron pools and increases in the supernatants. Strong positive correlation was observed between calcium measurements via ICP-MS and fluorescence-based approaches. Correlation analyses with metabolomics data showed a strong positive association between extracellular calcium and intracellular sodium or magnesium levels and intracellular glycolysis. Extracellular potassium or iron were positively correlated with free fatty acids (especially mono-, poly-, and highly-unsaturated or odd-chain fatty acid products of lipid peroxidation). Intracellular iron was instead positively correlated with saturated fatty acids (palmitate, stearate) and negatively with methionine metabolism (methionine, S-adenosylmethionine), phosphatidylserine exposure and glycolysis. CONCLUSION In the era of omics approaches, ICP-MS affords a comprehensive characterization of intracellular elements that provide direct insights on red blood cell physiology and represent meaningful covariates for data generated via other omics platforms such as metabolomics.
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Affiliation(s)
- Daniel Stephenson
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver–Anschutz Medical Campus, Aurora, CO, United States
| | - Travis Nemkov
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver–Anschutz Medical Campus, Aurora, CO, United States
| | - Syed M. Qadri
- Faculty of Health Sciences, Ontario Tech University, Oshawa, ON, Canada
| | - William P. Sheffield
- Centre for Innovation, Canadian Blood Services, Hamilton, ON, Canada
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Angelo D’Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver–Anschutz Medical Campus, Aurora, CO, United States
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31
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Abusukhun M, Winkler MS, Pöhlmann S, Moerer O, Meissner K, Tampe B, Hofmann-Winkler H, Bauer M, Gräler MH, Claus RA. Activation of Sphingomyelinase-Ceramide-Pathway in COVID-19 Purposes Its Inhibition for Therapeutic Strategies. Front Immunol 2022; 12:784989. [PMID: 34987511 PMCID: PMC8721106 DOI: 10.3389/fimmu.2021.784989] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/02/2021] [Indexed: 12/23/2022] Open
Abstract
Effective treatment strategies for severe coronavirus disease (COVID-19) remain scarce. Hydrolysis of membrane-embedded, inert sphingomyelin by stress responsive sphingomyelinases is a hallmark of adaptive responses and cellular repair. As demonstrated in experimental and observational clinical studies, the transient and stress-triggered release of a sphingomyelinase, SMPD1, into circulation and subsequent ceramide generation provides a promising target for FDA-approved drugs. Here, we report the activation of sphingomyelinase-ceramide pathway in 23 intensive care patients with severe COVID-19. We observed an increase of circulating activity of sphingomyelinase with subsequent derangement of sphingolipids in serum lipoproteins and from red blood cells (RBC). Consistent with increased ceramide levels derived from the inert membrane constituent sphingomyelin, increased activity of acid sphingomyelinase (ASM) accurately distinguished the patient cohort undergoing intensive care from healthy controls. Positive correlational analyses with biomarkers of severe clinical phenotype support the concept of an essential pathophysiological role of ASM in the course of SARS-CoV-2 infection as well as of a promising role for functional inhibition with anti-inflammatory agents in SARS-CoV-2 infection as also proposed in independent observational studies. We conclude that large-sized multicenter, interventional trials are now needed to evaluate the potential benefit of functional inhibition of this sphingomyelinase in critically ill patients with COVID-19.
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Affiliation(s)
- Murad Abusukhun
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany.,Center for Molecular Biomedicine (CMB), Jena University Hospital, Jena, Germany
| | - Martin S Winkler
- Department of Anesthesiology, Emergency and Intensive Care Medicine, University of Göttingen, Göttingen, Germany
| | - Stefan Pöhlmann
- Infection Biology Unit, German Primate Center-Leibniz Institute for Primate Research, Göttingen, Germany.,Faculty of Biology and Psychology, University Göttingen, Göttingen, Germany
| | - Onnen Moerer
- Department of Anesthesiology, Emergency and Intensive Care Medicine, University of Göttingen, Göttingen, Germany
| | - Konrad Meissner
- Department of Anesthesiology, Emergency and Intensive Care Medicine, University of Göttingen, Göttingen, Germany
| | - Björn Tampe
- Department of Nephrology, University of Göttingen, Göttingen, Germany
| | - Heike Hofmann-Winkler
- Infection Biology Unit, German Primate Center-Leibniz Institute for Primate Research, Göttingen, Germany
| | - Michael Bauer
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany.,Center for Sepsis Control and Care (CSCC), Jena University Hospital, Jena, Germany
| | - Markus H Gräler
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany.,Center for Molecular Biomedicine (CMB), Jena University Hospital, Jena, Germany.,Center for Sepsis Control and Care (CSCC), Jena University Hospital, Jena, Germany
| | - Ralf A Claus
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany.,Center for Molecular Biomedicine (CMB), Jena University Hospital, Jena, Germany
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Interactive Dynamics of Cell Volume and Cell Death in Human Erythrocytes Exposed to α-Hemolysin from Escherichia coli. Int J Mol Sci 2022; 23:ijms23020872. [PMID: 35055067 PMCID: PMC8778525 DOI: 10.3390/ijms23020872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/09/2022] [Accepted: 01/11/2022] [Indexed: 12/16/2022] Open
Abstract
α-hemolysin (HlyA) of E. coli binds irreversibly to human erythrocytes and induces cell swelling, ultimately leading to hemolysis. We characterized the mechanism involved in water transport induced by HlyA and analyzed how swelling and hemolysis might be coupled. Osmotic water permeability (Pf) was assessed by stopped-flow light scattering. Preincubation with HlyA strongly reduced Pf in control- and aquaporin 1-null red blood cells, although the relative Pf decrease was similar in both cell types. The dynamics of cell volume and hemolysis on RBCs was assessed by electrical impedance, light dispersion and hemoglobin release. Results show that HlyA induced erythrocyte swelling, which is enhanced by purinergic signaling, and is coupled to osmotic hemolysis. We propose a mathematical model of HlyA activity where the kinetics of cell volume and hemolysis in human erythrocytes depend on the flux of osmolytes across the membrane, and on the maximum volume that these cells can tolerate. Our results provide new insights for understanding signaling and cytotoxicity mediated by HlyA in erythrocytes.
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Chiangjong W, Netsirisawan P, Hongeng S, Chutipongtanate S. Red Blood Cell Extracellular Vesicle-Based Drug Delivery: Challenges and Opportunities. Front Med (Lausanne) 2022; 8:761362. [PMID: 35004730 PMCID: PMC8739511 DOI: 10.3389/fmed.2021.761362] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/06/2021] [Indexed: 12/29/2022] Open
Abstract
Recently, red blood cell-derived extracellular vesicles (RBCEVs) have attracted attention for clinical applications because of their safety and biocompatibility. RBCEVs can escape macrophages through the binding of CD47 to inhibitory receptor signal regulatory protein α. Furthermore, genetic materials such as siRNA, miRNA, mRNA, or single-stranded RNA can be encapsulated within RBCEVs and then released into target cells for precise treatment. However, their side effects, half-lives, target cell specificity, and limited large-scale production under good manufacturing practice remain challenging. In this review, we summarized the biogenesis and composition of RBCEVs, discussed the advantages and disadvantages of RBCEVs for drug delivery compared with synthetic nanovesicles and non-red blood cell-derived EVs, and provided perspectives for overcoming current limitations to the use of RBCEVs for clinical applications.
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Affiliation(s)
- Wararat Chiangjong
- Pediatric Translational Research Unit, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pukkavadee Netsirisawan
- Pediatric Translational Research Unit, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Suradej Hongeng
- Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Somchai Chutipongtanate
- Pediatric Translational Research Unit, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.,Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.,Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Brun JF, Varlet-Marie E, Myzia J, Raynaud de Mauverger E, Pretorius E. Metabolic Influences Modulating Erythrocyte Deformability and Eryptosis. Metabolites 2021; 12:4. [PMID: 35050126 PMCID: PMC8778269 DOI: 10.3390/metabo12010004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 12/17/2022] Open
Abstract
Many factors in the surrounding environment have been reported to influence erythrocyte deformability. It is likely that some influences represent reversible changes in erythrocyte rigidity that may be involved in physiological regulation, while others represent the early stages of eryptosis, i.e., the red cell self-programmed death. For example, erythrocyte rigidification during exercise is probably a reversible physiological mechanism, while the alterations of red blood cells (RBCs) observed in pathological conditions (inflammation, type 2 diabetes, and sickle-cell disease) are more likely to lead to eryptosis. The splenic clearance of rigid erythrocytes is the major regulator of RBC deformability. The physicochemical characteristics of the surrounding environment (thermal injury, pH, osmolality, oxidative stress, and plasma protein profile) also play a major role. However, there are many other factors that influence RBC deformability and eryptosis. In this comprehensive review, we discuss the various elements and circulating molecules that might influence RBCs and modify their deformability: purinergic signaling, gasotransmitters such as nitric oxide (NO), divalent cations (magnesium, zinc, and Fe2+), lactate, ketone bodies, blood lipids, and several circulating hormones. Meal composition (caloric and carbohydrate intake) also modifies RBC deformability. Therefore, RBC deformability appears to be under the influence of many factors. This suggests that several homeostatic regulatory loops adapt the red cell rigidity to the physiological conditions in order to cope with the need for oxygen or fuel delivery to tissues. Furthermore, many conditions appear to irreversibly damage red cells, resulting in their destruction and removal from the blood. These two categories of modifications to erythrocyte deformability should thus be differentiated.
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Affiliation(s)
- Jean-Frédéric Brun
- UMR CNRS 9214-Inserm U1046 Physiologie et Médecine Expérimentale du Cœur et des Muscles-PHYMEDEXP, Unité D’explorations Métaboliques (CERAMM), Département de Physiologie Clinique, Université de Montpellier, Hôpital Lapeyronie-CHRU de Montpellier, 34295 Montpellier, France; (J.M.); (E.R.d.M.)
| | - Emmanuelle Varlet-Marie
- UMR CNRS 5247-Institut des Biomolécules Max Mousseron (IBMM), Laboratoire du Département de Physicochimie et Biophysique, UFR des Sciences Pharmaceutiques et Biologiques, Université de Montpellier, 34090 Montpellier, France;
| | - Justine Myzia
- UMR CNRS 9214-Inserm U1046 Physiologie et Médecine Expérimentale du Cœur et des Muscles-PHYMEDEXP, Unité D’explorations Métaboliques (CERAMM), Département de Physiologie Clinique, Université de Montpellier, Hôpital Lapeyronie-CHRU de Montpellier, 34295 Montpellier, France; (J.M.); (E.R.d.M.)
| | - Eric Raynaud de Mauverger
- UMR CNRS 9214-Inserm U1046 Physiologie et Médecine Expérimentale du Cœur et des Muscles-PHYMEDEXP, Unité D’explorations Métaboliques (CERAMM), Département de Physiologie Clinique, Université de Montpellier, Hôpital Lapeyronie-CHRU de Montpellier, 34295 Montpellier, France; (J.M.); (E.R.d.M.)
| | - Etheresia Pretorius
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch, Private Bag X1 MATIELAND, Stellenbosch 7602, South Africa;
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Abdulwahab H, Aljishi M, Sultan A, Al-Kafaji G, Sridharan K, Bakhiet M, Taha S. Whole blood transcriptomic analysis reveals PLSCR4 as a potential marker for vaso-occlusive crises in sickle cell disease. Sci Rep 2021; 11:22199. [PMID: 34772994 PMCID: PMC8590045 DOI: 10.1038/s41598-021-01702-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 11/02/2021] [Indexed: 11/09/2022] Open
Abstract
Sickle cell disease, a common genetic blood disorder, results from a point mutation in the β-globin gene affecting the configuration of hemoglobin, predisposing to painful vaso-occlusive crisis (VOC) and multi-organ dysfunctions. There is a huge variation in the phenotypic expressions of SCD and VOC owing to genetic and environmental factors. This study aimed to characterize the whole blood gene expression profile using Microarray technology in Bahraini patients with SCD determining the differentially expressed genes in steady-state (n = 10) and during VOC (n = 10) in comparison to healthy controls (n = 8). Additionally, the study intended to identify potential genetic marker associated with hemolysis. The analysis identified 2073 and 3363 genes that were dysregulated during steady-state and VOC, respectively, compared to healthy controls. Moreover, 1078 genes were differentially expressed during VOC compared to steady state. The PLSCR4 gene was almost 6-fold up-regulated in microarray, 4-fold in polymerase chain reaction, and a mean protein concentration of 0.856 ng/ml was observed in enzyme-linked immunosorbent assay during VOC compared to steady-state (0.238 ng/ml) (p < 0.01). Amongst these genes, PLSCR4 is involved in erythrocyte membrane deformity thus, predisposing to hemolysis, adhesion, and thrombosis. In conclusion, PLSCR4 may serve as a potential biomarker for VOC and future large-scale validation are recommended.
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Affiliation(s)
- Hawra Abdulwahab
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al Jawhara Center for Molecular Medicine, Genetics and Inherited Diseases, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Muna Aljishi
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al Jawhara Center for Molecular Medicine, Genetics and Inherited Diseases, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Ameera Sultan
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al Jawhara Center for Molecular Medicine, Genetics and Inherited Diseases, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Ghada Al-Kafaji
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al Jawhara Center for Molecular Medicine, Genetics and Inherited Diseases, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Kannan Sridharan
- Department of Pharmacology and Therapeutics, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Moiz Bakhiet
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al Jawhara Center for Molecular Medicine, Genetics and Inherited Diseases, Arabian Gulf University, Manama, Kingdom of Bahrain
| | - Safa Taha
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al Jawhara Center for Molecular Medicine, Genetics and Inherited Diseases, Arabian Gulf University, Manama, Kingdom of Bahrain.
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36
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In vitro effect of high glucose concentrations on erythrocyte morphology assessed by scanning electron microscopy. Micron 2021; 154:103179. [PMID: 34895961 DOI: 10.1016/j.micron.2021.103179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/04/2021] [Accepted: 11/04/2021] [Indexed: 11/23/2022]
Abstract
AIMS To evaluate the in vitro effect of different glucose concentrations and the time series in erythrocyte cell viability and morphology parameters. METHODS Different glucose concentrations were assessed, from a normal physiological glucose concentration (5 mM) to a diabetes scenario (100 mM). Cell viability was obtained by the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay. The erythrocyte morphology (diameter, height, and axial ratio) was assessed by scanning electron microscopy (SEM). RESULTS A significant decrease in cell viability was observed in erythrocytes with higher glucose concentration (100 mM). There was also a significant increase in the cells' diameter and height exposed to 100 mM, vs. those cultured with 5, 20, and 45 mM glucose, but only at 24 and 48 h. When comparing the same glucose concentration by a time series, it was observed that erythrocytes from the culture with 45 and 100 mM of glucose had a significant continuous decrease (approximately -0.40 μm) in diameter and height (24, 48, and 72 h), but there was no difference in the axial ratio observed. CONCLUSION Continuous exposure to high glucose concentrations in diabetes models produced less cell viability and changes in erythrocyte morphology (larger and scrambled cells), which in vivo might impact in microvascular complications.
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Yang X, Zhao B, Wang J, Wang L, Tao M, Lu J, Lin J, Sun J, Wang R. Red blood cell lifespan in long-term hemodialysis patients treated with roxadustat or recombinant human erythropoietin. Ren Fail 2021; 43:1428-1436. [PMID: 34657570 PMCID: PMC8525968 DOI: 10.1080/0886022x.2021.1988968] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Introduction A significant decrease in red blood cell (RBC) survival has been observed in patients with renal failure, which is supposed to contribute to renal anemia. The aim of this observational study was to determine RBC survival in hemodialysis (HD) patients treated with roxadustat or recombinant human erythropoietin (rhuEPO) compared with healthy persons. Methods RBC lifespan was measured by Levitt’s CO breath test with newly developed automatic instrument ELS Tester. Results A total of 102 patients receiving long-term HD from two independent dialysis centers enrolled in the study, of whom 62 were treated with rhuEPO and 40 were on roxadustat therapy. A total of 25 healthy participants were recruited to match HD participants according to age and sex. Median RBC survival times in rhuEPO, roxadustat, and control groups were 65.0 (25th–75th percentile, 49.5–77.3), 75.5 (25th–75th percentile, 57.3–99.3), and 108.0 (25th–75th percentile, 89.0–141.5) d, respectively. Patients treated with roxadustat had significantly longer RBC survival time than patients treated with rhuEPO (p < .05). In multivariate analysis of factors affecting RBC lifespan in the whole HD patients, anemia treatment drugs (rhuEPO/roxadustat) and levels of hemoglobin were the significantly independent factors. RBC survival was not found to correlate with either weekly rhuEPO dosage (r = –0.087, p = .500) or weekly roxadustat dosage (r = −0.267, p = .110) in our cohort. Conclusions HD patients treated with roxadustat had significantly longer RBC survival time than patients treated with rhuEPO, large prospective studies with long-term follow-up are warranted to verify the results in future. Abbreviations RBC: red blood cell; HD: hemodialysis; rhu EPO: recombinant human erythropoietin; ESRD: end-stage renal disease; EPO: erythropoietin; ROS: reactive oxygen species; CKD: chronic kideny disease; ESAs: erythropoiesis-stimulating agents; HIF-PHD: hypoxia-inducible factor prolyl hydroxylase; CO: carbon monoxide; Hb: hemoglobin
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Affiliation(s)
- Xiaowei Yang
- Department of Nephrology, Provincial Hospital affiliated to Shandong First Medical University, Jinan, PR China
| | - Bing Zhao
- Department of Nephrology, Provincial Hospital affiliated to Shandong First Medical University, Jinan, PR China
| | - Jing Wang
- Department of Nephrology, Caoxian People's Hospital, Heze, PR China
| | - Lei Wang
- Department of Nephrology, Caoxian People's Hospital, Heze, PR China
| | - Min Tao
- Department of Nephrology, Provincial Hospital affiliated to Shandong First Medical University, Jinan, PR China
| | - Jing Lu
- Department of Nephrology, Provincial Hospital affiliated to Shandong First Medical University, Jinan, PR China
| | - Jiangong Lin
- Department of Nephrology, Provincial Hospital affiliated to Shandong First Medical University, Jinan, PR China
| | - Jing Sun
- Department of Nephrology, Provincial Hospital affiliated to Shandong First Medical University, Jinan, PR China
| | - Rong Wang
- Department of Nephrology, Provincial Hospital affiliated to Shandong First Medical University, Jinan, PR China
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Turpin C, Catan A, Meilhac O, Bourdon E, Canonne-Hergaux F, Rondeau P. Erythrocytes: Central Actors in Multiple Scenes of Atherosclerosis. Int J Mol Sci 2021; 22:ijms22115843. [PMID: 34072544 PMCID: PMC8198892 DOI: 10.3390/ijms22115843] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 12/16/2022] Open
Abstract
The development and progression of atherosclerosis (ATH) involves lipid accumulation, oxidative stress and both vascular and blood cell dysfunction. Erythrocytes, the main circulating cells in the body, exert determinant roles in the gas transport between tissues. Erythrocytes have long been considered as simple bystanders in cardiovascular diseases, including ATH. This review highlights recent knowledge concerning the role of erythrocytes being more than just passive gas carriers, as potent contributors to atherosclerotic plaque progression. Erythrocyte physiology and ATH pathology is first described. Then, a specific chapter delineates the numerous links between erythrocytes and atherogenesis. In particular, we discuss the impact of extravasated erythrocytes in plaque iron homeostasis with potential pathological consequences. Hyperglycaemia is recognised as a significant aggravating contributor to the development of ATH. Then, a special focus is made on glycoxidative modifications of erythrocytes and their role in ATH. This chapter includes recent data proposing glycoxidised erythrocytes as putative contributors to enhanced atherothrombosis in diabetic patients.
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Affiliation(s)
- Chloé Turpin
- Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), INSERM, UMR 1188, Université de La Réunion, 97400 Saint Denis, France; (C.T.); (A.C.); (O.M.); (E.B.)
| | - Aurélie Catan
- Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), INSERM, UMR 1188, Université de La Réunion, 97400 Saint Denis, France; (C.T.); (A.C.); (O.M.); (E.B.)
| | - Olivier Meilhac
- Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), INSERM, UMR 1188, Université de La Réunion, 97400 Saint Denis, France; (C.T.); (A.C.); (O.M.); (E.B.)
- Centre Hospitalier Universitaire de La Réunion, 97400 Saint Denis, France
| | - Emmanuel Bourdon
- Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), INSERM, UMR 1188, Université de La Réunion, 97400 Saint Denis, France; (C.T.); (A.C.); (O.M.); (E.B.)
| | | | - Philippe Rondeau
- Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), INSERM, UMR 1188, Université de La Réunion, 97400 Saint Denis, France; (C.T.); (A.C.); (O.M.); (E.B.)
- Correspondence: ; Tel.: +262(0)-2-62-93-88-43; Fax: +262-(0)-2-62-93-88-01
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Li K, Wang H, Zhang HF, Zhao XX, Lai YJ, Liu FF. Genomic analysis of host gene responses to cerebral Plasmodium falciparum malaria. IMMUNITY INFLAMMATION AND DISEASE 2021; 9:819-826. [PMID: 33942992 PMCID: PMC8342194 DOI: 10.1002/iid3.436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/16/2021] [Accepted: 03/31/2021] [Indexed: 11/09/2022]
Abstract
Introduction A vaccine for malaria is urgently required but no vaccine has yet shown satisfactory protective efficacy especially for Plasmodium falciparum. P. falciparum infection can progress to cerebral malaria (CM), a neurological syndrome with exceedingly high mortality. Designing effective P. falciparum vaccines require more understanding of the protective immune response while the host immune response to CM and the mechanisms are still elusive. Here, we aim to identify host gene responses to CM and host gene networks associated with CM pathogenesis. Methods An innovative genomic analysis strategy, the weighted gene coexpression network analysis (WGCNA) combined with differential gene expression analysis, was used in this study. Data for analysis contain 93 whole blood samples, derived from two previous public transcriptome datasets. Results This approach led to the identification of numerous differentially expressed human transcripts and dozens of coexpression gene modules. We further identified nine key genes, including MBP, SAMSN1, PSMF1, SLC39A8, EIF3B, SMPDL3A, FABP5, SPSB3, and SHARPIN, of which the last four genes were first identified to be related to CM in the present study. Conclusion The results provided a comprehensive characterization of host gene expression profiles in CM and offered some new insight into malaria vaccine design. These identified key genes could be potential targets or immune modulators for novel therapeutic interventions of CM.
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Affiliation(s)
- Ke Li
- Department of Blood Transfusion, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Wang
- Department of Pharmacy, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Hong-Feng Zhang
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Xiao Zhao
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong-Ji Lai
- Department of Pharmacy, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang-Fang Liu
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Fraser M, Matuschewski K, Maier AG. Of membranes and malaria: phospholipid asymmetry in Plasmodium falciparum-infected red blood cells. Cell Mol Life Sci 2021; 78:4545-4561. [PMID: 33713154 PMCID: PMC11071739 DOI: 10.1007/s00018-021-03799-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/04/2021] [Accepted: 02/23/2021] [Indexed: 11/29/2022]
Abstract
Malaria is a vector-borne parasitic disease with a vast impact on human history, and according to the World Health Organisation, Plasmodium parasites still infect over 200 million people per year. Plasmodium falciparum, the deadliest parasite species, has a remarkable ability to undermine the host immune system and cause life-threatening disease during blood infection. The parasite's host cells, red blood cells (RBCs), generally maintain an asymmetric distribution of phospholipids in the two leaflets of the plasma membrane bilayer. Alterations to this asymmetry, particularly the exposure of phosphatidylserine (PS) in the outer leaflet, can be recognised by phagocytes. Because of the importance of innate immune defence numerous studies have investigated PS exposure in RBCs infected with P. falciparum, but have reached different conclusions. Here we review recent advancements in our understanding of the molecular mechanisms which regulate asymmetry in RBCs, and whether infection with the P. falciparum parasite results in changes to PS exposure. On the balance of evidence, it is likely that membrane asymmetry is disrupted in parasitised RBCs, though some methodological issues need addressing. We discuss the potential causes and consequences of altered asymmetry in parasitised RBCs, particularly for in vivo interactions with the immune system, and the role of host-parasite co-evolution. We also examine the potential asymmetric state of parasite membranes and summarise current knowledge on the parasite proteins, which could regulate asymmetry in these membranes. Finally, we highlight unresolved questions at this time and the need for interdisciplinary approaches to uncover the machinery which enables P. falciparum parasites to hide in mature erythrocytes.
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Affiliation(s)
- Merryn Fraser
- Research School of Biology, The Australian National University, Canberra, Australia
- Department of Molecular Parasitology, Institute of Biology, Humboldt University, Berlin, Germany
| | - Kai Matuschewski
- Department of Molecular Parasitology, Institute of Biology, Humboldt University, Berlin, Germany
| | - Alexander G Maier
- Research School of Biology, The Australian National University, Canberra, Australia.
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Restivo I, Attanzio A, Tesoriere L, Allegra M. Suicidal Erythrocyte Death in Metabolic Syndrome. Antioxidants (Basel) 2021; 10:antiox10020154. [PMID: 33494379 PMCID: PMC7911029 DOI: 10.3390/antiox10020154] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
Eryptosis is a coordinated, programmed cell death culminating with the disposal of cells without disruption of the cell membrane and the release of endocellular oxidative and pro-inflammatory milieu. While providing a convenient form of death for erythrocytes, dysregulated eryptosis may result in a series of detrimental and harmful pathological consequences highly related to the endothelial dysfunction (ED). Metabolic syndrome (MetS) is described as a cluster of cardiometabolic factors (hyperglycemia, dyslipidemia, hypertension and obesity) that increases the risk of cardiovascular complications such as those related to diabetes and atherosclerosis. In the light of the crucial role exerted by the eryptotic process in the ED, the focus of the present review is to report and discuss the involvement of eryptosis within MetS, where vascular complications are utterly relevant. Current knowledge on the mechanisms leading to eryptosis in MetS-related conditions (hyperglycemia, dyslipidemia, hypertension and obesity) will be analyzed. Moreover, clinical evidence supporting or proposing a role for eryptosis in the ED, associated to MetS cardiovascular complications, will be discussed.
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Affiliation(s)
| | | | - Luisa Tesoriere
- Correspondence: (L.T.); (M.A.); Tel.: +39-091-238-96803 (L.T. & M.A.)
| | - Mario Allegra
- Correspondence: (L.T.); (M.A.); Tel.: +39-091-238-96803 (L.T. & M.A.)
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Maxwell KD, Chuang J, Chaudhry M, Nie Y, Bai F, Sodhi K, Liu J, Shapiro JI. The potential role of Na-K-ATPase and its signaling in the development of anemia in chronic kidney disease. Am J Physiol Renal Physiol 2020; 320:F234-F242. [PMID: 33356956 DOI: 10.1152/ajprenal.00244.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Chronic kidney disease (CKD) is one of the most prominent diseases affecting our population today. According to the Factsheet published by Centers for Disease Control and Prevention (CDC), it effects approximately 15% of the total population in the United States in some way, shape, or form. Within the myriad of symptomatology associated with CKD, one of the most prevalent factors in terms of affecting quality of life is anemia. Anemia of CKD cannot be completely attributed to one mechanism or cause, but rather has a multifactorial origin in the pathophysiology of CKD. While briefly summarizing well-documented risk factors, this review, as a hypothesis, aims to explore the possible role of Na-K-ATPase and its signaling function [especially recent identified reactive oxygen species (ROS) amplification function] in the interwoven mechanisms of development of the anemia of CKD.
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Affiliation(s)
- Kyle D Maxwell
- Department of Biomsedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Justin Chuang
- Department of Biomsedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Muhammad Chaudhry
- Department of Biomsedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Ying Nie
- Department of Biomsedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Fang Bai
- Department of Biomsedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Komal Sodhi
- Department of Biomsedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia.,Department of Medicine, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Jiang Liu
- Department of Biomsedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Joseph I Shapiro
- Department of Medicine, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
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Oxidative DNA Damage, Inflammatory Signature, and Altered Erythrocytes Properties in Diamond-Blackfan Anemia. Int J Mol Sci 2020; 21:ijms21249652. [PMID: 33348919 PMCID: PMC7768356 DOI: 10.3390/ijms21249652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022] Open
Abstract
Molecular pathophysiology of Diamond-Blackfan anemia (DBA) involves disrupted erythroid-lineage proliferation, differentiation and apoptosis; with the activation of p53 considered as a key component. Recently, oxidative stress was proposed to play an important role in DBA pathophysiology as well. CRISPR/Cas9-created Rpl5- and Rps19-deficient murine erythroleukemia (MEL) cells and DBA patients' samples were used to evaluate proinflammatory cytokines, oxidative stress, DNA damage and DNA damage response. We demonstrated that the antioxidant defense capacity of Rp-mutant cells is insufficient to meet the greater reactive oxygen species (ROS) production which leads to oxidative DNA damage, cellular senescence and activation of DNA damage response signaling in the developing erythroblasts and altered characteristics of mature erythrocytes. We also showed that the disturbed balance between ROS formation and antioxidant defense is accompanied by the upregulation of proinflammatory cytokines. Finally, the alterations detected in the membrane of DBA erythrocytes may cause their enhanced recognition and destruction by reticuloendothelial macrophages, especially during infections. We propose that the extent of oxidative stress and the ability to activate antioxidant defense systems may contribute to high heterogeneity of clinical symptoms and response to therapy observed in DBA patients.
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Podsiedlik M, Markowicz-Piasecka M, Sikora J. Erythrocytes as model cells for biocompatibility assessment, cytotoxicity screening of xenobiotics and drug delivery. Chem Biol Interact 2020; 332:109305. [PMID: 33130048 DOI: 10.1016/j.cbi.2020.109305] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/20/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022]
Abstract
Erythrocytes (RBCs) represent the main cell component in circulation and recently have become a topic of intensive scientific interest. The relevance of erythrocytes as a model for cytotoxicity screening of xenobiotics is under the spotlight of this review. Erythrocytes constitute a fundamental cellular model to study potential interactions with blood components of manifold novel polymer or biomaterials. Morphological changes, subsequent disruption of RBC membrane integrity, and hemolysis could be used to determine the cytotoxicity of various compounds. Erythrocytes undergo a programmed death (eryptosis) which could serve as a good model for evaluating certain mechanisms which correspond to apoptosis taking place in nucleated cells. Importantly, erythrocytes can be successfully used as a valuable cellular model in examination of oxidative stress generated by certain diseases or multiple xenobiotics since red cells are subjected to permanent oxidative stress. Additionally, the antioxidant capacity of erythrocytes, and the activity of anti-oxidative enzymes could reflect reactive oxygen species (ROS) generating properties of various substances and allow to determine their effects on tissues. The last part of this review presents the latest findings on the possible application of RBCs as drug delivery systems (DDS). In conclusion, all these findings make erythrocytes highly valuable cells for in vitro biocompatibility assessment, cytotoxicity screening of a wide variety of substances as well as drug delivery.
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Affiliation(s)
- Maria Podsiedlik
- Department of Pharmaceutical Chemistry, Drug Analysis and Radiopharmacy, Medical University of Lodz, ul. Muszyńskiego1, 90-151, Lodz, Poland.
| | - Magdalena Markowicz-Piasecka
- Laboratory of Bioanalysis, Department of Pharmaceutical Chemistry, Drug Analysis and Radiopharmacy, Medical University of Lodz, ul. Muszyńskiego1, 90-151, Lodz, Poland.
| | - Joanna Sikora
- Laboratory of Bioanalysis, Department of Pharmaceutical Chemistry, Drug Analysis and Radiopharmacy, Medical University of Lodz, ul. Muszyńskiego1, 90-151, Lodz, Poland.
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45
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Microvesicle Formation Induced by Oxidative Stress in Human Erythrocytes. Antioxidants (Basel) 2020; 9:antiox9100929. [PMID: 32998418 PMCID: PMC7650597 DOI: 10.3390/antiox9100929] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs) released by different cell types play an important role in many physiological and pathophysiological processes. In physiological conditions, red blood cell (RBC)-derived EVs compose 4–8% of all circulating EVs, and oxidative stress (OS) as a consequence of different pathophysiological conditions significantly increases the amount of circulated RBC-derived EVs. However, the mechanisms of EV formation are not yet fully defined. To analyze OS-induced EV formation and RBC transformations, we used flow cytometry to evaluate cell esterase activity, caspase-3 activity, and band 3 clustering. Band 3 clustering was additionally analyzed by confocal microscopy. Two original laser diffraction-based approaches were used for the analysis of cell deformability and band 3 activity. Hemoglobin species were characterized spectrophotometrically. We showed that cell viability in tert-Butyl hydroperoxide-induced OS directly correlated with oxidant concentration to cell count ratio, and that RBC-derived EVs contained hemoglobin oxidized to hemichrome (HbChr). OS induced caspase-3 activation and band 3 clustering in cells and EVs. Importantly, we showed that OS-induced EV formation is independent of calcium. The presented data indicated that during OS, RBCs eliminated HbChr by vesiculation in order to sacrifice the cell itself, thereby prolonging lifespan and delaying the untimely clearance of in all other respects healthy RBCs.
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Bissinger R, Petkova-Kirova P, Mykhailova O, Oldenborg PA, Novikova E, Donkor DA, Dietz T, Bhuyan AAM, Sheffield WP, Grau M, Artunc F, Kaestner L, Acker JP, Qadri SM. Thrombospondin-1/CD47 signaling modulates transmembrane cation conductance, survival, and deformability of human red blood cells. Cell Commun Signal 2020; 18:155. [PMID: 32948210 PMCID: PMC7502024 DOI: 10.1186/s12964-020-00651-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Thrombospondin-1 (TSP-1), a Ca2+-binding trimeric glycoprotein secreted by multiple cell types, has been implicated in the pathophysiology of several clinical conditions. Signaling involving TSP-1, through its cognate receptor CD47, orchestrates a wide array of cellular functions including cytoskeletal organization, migration, cell-cell interaction, cell proliferation, autophagy, and apoptosis. In the present study, we investigated the impact of TSP-1/CD47 signaling on Ca2+ dynamics, survival, and deformability of human red blood cells (RBCs). METHODS Whole-cell patch-clamp was employed to examine transmembrane cation conductance. RBC intracellular Ca2+ levels and multiple indices of RBC cell death were determined using cytofluorometry analysis. RBC morphology and microvesiculation were examined using imaging flow cytometry. RBC deformability was measured using laser-assisted optical rotational cell analyzer. RESULTS Exposure of RBCs to recombinant human TSP-1 significantly increased RBC intracellular Ca2+ levels. As judged by electrophysiology experiments, TSP-1 treatment elicited an amiloride-sensitive inward current alluding to a possible Ca2+ influx via non-selective cation channels. Exogenous TSP-1 promoted microparticle shedding as well as enhancing Ca2+- and nitric oxide-mediated RBC cell death. Monoclonal (mouse IgG1) antibody-mediated CD47 ligation using 1F7 recapitulated the cell death-inducing effects of TSP-1. Furthermore, TSP-1 treatment altered RBC cell shape and stiffness (maximum elongation index). CONCLUSIONS Taken together, our data unravel a new role for TSP-1/CD47 signaling in mediating Ca2+ influx into RBCs, a mechanism potentially contributing to their dysfunction in a variety of systemic diseases. Video abstract.
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Affiliation(s)
- Rosi Bissinger
- Department of Internal Medicine, Division of Endocrinology, Diabetology, and Nephrology, Universitätsklinikum Tübingen, Tübingen, Germany
| | | | - Olga Mykhailova
- Centre for Innovation, Canadian Blood Services, Edmonton, AB, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Per-Arne Oldenborg
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Elena Novikova
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - David A Donkor
- Centre for Innovation, Canadian Blood Services, Hamilton, ON, Canada.,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Thomas Dietz
- Institute of Molecular and Cellular Sports Medicine, German Sport University of Cologne, Köln, Germany
| | | | - William P Sheffield
- Centre for Innovation, Canadian Blood Services, Hamilton, ON, Canada.,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Marijke Grau
- Institute of Molecular and Cellular Sports Medicine, German Sport University of Cologne, Köln, Germany
| | - Ferruh Artunc
- Department of Internal Medicine, Division of Endocrinology, Diabetology, and Nephrology, Universitätsklinikum Tübingen, Tübingen, Germany.,Institute of Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at Eberhard-Karls University, Tübingen, Germany.,German Center for Diabetes Research (DZD), Eberhard-Karls University, Tübingen, Germany
| | - Lars Kaestner
- Theoretical Medicine and Biosciences, Saarland University, Homburg, Germany.,Experimental Physics, Saarland University, Saarbruecken, Germany
| | - Jason P Acker
- Centre for Innovation, Canadian Blood Services, Edmonton, AB, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Syed M Qadri
- Centre for Innovation, Canadian Blood Services, Hamilton, ON, Canada. .,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada. .,Faculty of Health Sciences, Ontario Tech University, Oshawa, ON, Canada.
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47
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Sultan SA, Khawaji MH, Alsughayyir J, Alfhili MA, Alamri HS, Alrfaei BM. Antileukemic activity of sulfoxide nutraceutical allicin against THP-1 cells is associated with premature phosphatidylserine exposure in human erythrocytes. Saudi J Biol Sci 2020; 27:3376-3384. [PMID: 33304145 PMCID: PMC7715525 DOI: 10.1016/j.sjbs.2020.09.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 08/30/2020] [Accepted: 09/01/2020] [Indexed: 12/12/2022] Open
Abstract
Background Allicin (ACN), a sulfoxide in freshly crushed garlic, is known for its diverse bioactive properties. Among the most notable effects of ACN is its antitumor activity against a wide array of cancer types. Thus, ACN may be a promising anticancer therapeutic. Nevertheless, chemotherapy-induced anemia is a major obstacle in cancer management with a prevalence of up to 70%. Although the pathophysiology behind it remains elusive, a number of medications known to cause anemia in patients have been shown to induce premature programmed cell death in red blood cells (RBCs) known as eryptosis. This study, thus, investigates the anticancer potential of ACN against THP-1 monocytic leukemia cells, its toxic effects on human RBCs, and delineate the underlying biochemical mechanisms. Methods Cytotoxicity was detected using the MTT assay, while hemoglobin leakage was used as a surrogate for hemolysis which was photometrically measured. Major eryptotic events were examined using flow cytometry with fluorescent probes. Phosphatidylserine (PS) exposure was detected by Annexin-V-FITC, cytosolic calcium with Fluo4/AM, and reactive oxygen species with H2DCFDA. Results Our results show that ACN induces hemolysis in a dose-dependent fashion, which is significantly abrogated in absence of extracellular calcium. Moreover, ACN stimulates PS exposure, intracellular calcium overload, and oxidative stress. Using small-molecule inhibitors, we demonstrate that the pro-eryptotic activity of ACN is ameliorated in presence of zVAD(OMe)-FMK, SB203580, and D4476. Conclusion ACN possesses both hemolytic and eryptotic properties mediated through elevated intracellular calcium levels, oxidative stress, caspase, p38 MAPK, and CK1α.
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Affiliation(s)
- Samar A Sultan
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed H Khawaji
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Biochemistry, Faculty of Applied Medical Sciences, University of Jazan, Jizan, Saudi Arabia
| | - Jawaher Alsughayyir
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Mohammad A Alfhili
- Chair of Medical and Molecular Genetics Research, Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Hassan S Alamri
- Clinical Laboratory Science Department, College of Applied Medical Sciences, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Centre (KAIMRC), Riyadh, Saudi Arabia
| | - Bahauddeen M Alrfaei
- Stem Cell and Regenerative Medicine, King Abdullah International Medical Research Centre (KAIMRC)/King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Saudi Arabia
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48
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Naveed A, Jilani K, Siddique AB, Akbar M, Riaz M, Mushtaq Z, Sikandar M, Ilyas S, Bibi I, Asghar A, Rasool G, Irfan M. Induction of Erythrocyte Shrinkage by Omeprazole. Dose Response 2020; 18:1559325820946941. [PMID: 32863802 PMCID: PMC7432979 DOI: 10.1177/1559325820946941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/23/2020] [Accepted: 07/07/2020] [Indexed: 11/16/2022] Open
Abstract
Omeprazole, a proton pump inhibitor blocks the H+/K+-ATPase
channels of gastric parietal cells. It is used for the treatment of peptic
ulcer. Prolonged use of omeprazole may involve in inducing anemia. The key
marker of eryptosis includes membrane blebbing, cell shrinkage and
phosphatidylserine (PS) exposure at the cell surface. In current study, the
eryptotic, oxidative as well as hemolytic effects of therapeutical doses (0.5, 1
and 1.5 µM) of omeprazole were investigated after exposing erythrocytes for 48
hours. Investigation of eryptosis was done by cell size measurement, PS exposure
determination and calcium channel inhibition. As a possible mechanism of
omeprazole induced eryptosis, oxidative stress was investigated by determining
the catalase, glutathione peroxidase and superoxide dismutase activities.
Similarly, necrotic effect of omeprazole on erythrocytes was also evaluated
through hemolysis measurement. Results of our study illustrated that 1.5 µM of
omeprazole may induce significant decrease in superoxide dismutase, glutathione
peroxidase and catalase activities as well as triggered the erythrocytes
shrinkage, PS exposure and hemolysis. Role of calcium was also confirmed in
inducing erythrocyte shrinkage. It is concluded that the exposure of
erythrocytes with 1.5 µM omeprazole may enhance the rate of eryptosis and
hemolysis by inducing oxidative stress.
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Affiliation(s)
- Ayesha Naveed
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Kashif Jilani
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Abu Bakar Siddique
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Akbar
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Riaz
- Department of Allied Health Sciences, University of Sargodha, Sargodha Medical College, Sargodha, Pakistan
| | - Zahid Mushtaq
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Sikandar
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Sajida Ilyas
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Ismat Bibi
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Asma Asghar
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Ghulam Rasool
- Department of Allied Health Sciences, University of Sargodha, Sargodha Medical College, Sargodha, Pakistan
| | - Muhammad Irfan
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
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Szczesny-Malysiak E, Dybas J, Blat A, Bulat K, Kus K, Kaczmarska M, Wajda A, Malek K, Chlopicki S, Marzec KM. Irreversible alterations in the hemoglobin structure affect oxygen binding in human packed red blood cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118803. [PMID: 32738251 DOI: 10.1016/j.bbamcr.2020.118803] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/02/2020] [Accepted: 07/24/2020] [Indexed: 01/06/2023]
Abstract
The ability of hemoglobin (Hb) to transport respiratory gases is directly linked to its quaternary structure properties and reversible changes between T (tense) and R (relax) state. In this study we demonstrated that packed red blood cells (pRBCs) storage resulted in a gradual increase in the irreversible changes in the secondary and quaternary structures of Hb, with subsequent impairment of the T↔R transition. Such alteration was associated with the presence of irreversibly settled in the relaxed form, quaternary structure of Hb, which we termed R'. On the secondary structure level, disordered protein organization involved formation of β-sheets and a decrease in α-helices related to the aggregation process stabilized by strong intermolecular hydrogen bonding. Compensatory changes in RBCs metabolism launched to preserve reductive microenvironment were disclosed as an activation of nicotinamide adenine dinucleotide phosphate (NADPH) production and increased reduced to oxidized glutathione (GSH/GSSG) ratio. For the first time we showed the relationship between secondary structure changes and the occurrence of newly discovered R', which through an artificial increase in oxyhemoglobin level altered Hb ability to bind and release oxygen.
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Affiliation(s)
- Ewa Szczesny-Malysiak
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland.
| | - Jakub Dybas
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland.
| | - Aneta Blat
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland; Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland.
| | - Katarzyna Bulat
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland.
| | - Kamil Kus
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland.
| | - Magdalena Kaczmarska
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland.
| | - Aleksandra Wajda
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland; Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland.
| | - Kamilla Malek
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland.
| | - Stefan Chlopicki
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland; Chair of Pharmacology, Jagiellonian University Medical College, Grzegorzecka 16, 31-531 Krakow, Poland.
| | - Katarzyna M Marzec
- Jagiellonian Center for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland.
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50
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Swanepoel AC, Bester J, Emmerson O, Soma P, Beukes D, van Reenen M, Loots DT, du Preez I. Serum Metabolome Changes in Relation to Prothrombotic State Induced by Combined Oral Contraceptives with Drospirenone and Ethinylestradiol. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2020; 24:404-414. [PMID: 32471328 DOI: 10.1089/omi.2020.0009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The association between hypercoagulability and use of drospirenone (DRSP) and ethinylestradiol (EE) containing combined oral contraceptives (COCs) is an important clinical concern. We have previously reported that the two formulations of DRSP combined with EE (namely, DRSP/20EE and DRSP/30EE) bring about a prothrombotic state in hemostatic traits of female users. We report here the serum metabolomic changes in the same study cohort in relation to the attendant prothrombotic state induced by COC use, thus offering new insights on the underlying biochemical mechanisms contributing to the altered coagulatory profile with COC use. A total of 78 healthy women participated in this study and were grouped as follows: control group not using oral contraceptives (n = 25), DRSP/20EE group (n = 27), and DRSP/30EE group (n = 26). Untargeted metabolomics revealed changes in amino acid concentrations, particularly a decrease in glycine and an increase in both cysteine and lanthionine in the serum, accompanied by variations in oxidative stress markers in the COC users compared with the controls. Of importance, this study is the first to link specific amino acid variations, serum metabolites, and the oxidative metabolic profile with DRSP/EE use. These molecular changes could be linked to specific biophysical coagulatory alterations observed in the same individuals. These new findings lend evidence on the metabolomic substrates of the prothrombotic state associated with COC use in women and informs future personalized/precision medicine research. Moreover, we underscore the importance of an interdisciplinary approach to evaluate venous thrombotic risk associated with COC use.
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Affiliation(s)
- Albe Carina Swanepoel
- Department of Physiology and Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Janette Bester
- Department of Physiology and Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Odette Emmerson
- Department of Physiology and Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Prashilla Soma
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Derylize Beukes
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Mari van Reenen
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Du Toit Loots
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Ilse du Preez
- Human Metabolomics, North-West University, Potchefstroom, South Africa
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